tag:blogger.com,1999:blog-27736503056848362292024-03-12T17:21:42.570-07:00laporan kation golongan 1 ObrolanTeknologihttp://www.blogger.com/profile/02105022611378059832noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-2773650305684836229.post-33868748920721328492012-10-24T01:59:00.001-07:002012-10-24T01:59:41.105-07:00lab.kimia analisa<br />
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<b><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; mso-fareast-font-family: "Times New Roman";">Analisis Kualitatif Kation Golongan I<o:p></o:p></span></b></div>
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<b><span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">1. Tujuan</span></b><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Setelah melakukan pratikum, diharapkan mahasiswa dapat :</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">· Mempelajari
reaksi-reaksi spesifik kation golongan I</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">· Melakukan pemisahan
terhadap kation golongan I dalam suatu sampel</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<b><span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">2. Dasar teori</span></b><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Dalam analisis Kualitatis sistematik kation kation dapat
diklasifikasikan ke dalam lima golongan berdasarkan sifat sifat kation itu
terhadap pereaksi tertentu. Dengan menggunakan pereaksi tersebut maka dapat
ditetapkan ada atau tidaknya suatu kation dan dapat juga memisahkan kation
kation untuk pemeriksaan lebih lanjut.</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Larutan yang masih berisi sebagian besar kation kemudian
diendapkan kembali membentuk kelompok kation baru. Jika dalam kelompok kation
yang terendapkan masih berisi beberapa kation maka kation-kation tersebut
dipisahkan lagi menjadi kelompok kation yang lebih kecil, demikian seterusnya
sehingga pada akhirnya dapat dilakukan uji spesifik untuk satu kation. Jenis
dan konsentrasi pereaksi serta pengaturan pH larutan dilakukan untuk memisahkan
kation menjadi beberapa kelompok. Suatu skema analisis standar untuk
mengidentifikasi 25 kation dan 13 anion yang berbeda telah disusun. Skema
analisis tersebut terus dikembangkan sehingga sekarang orang dapat memilih
skema yang sesuai dengan kondisi yang ada dilaboratorium masing-masing. Bahkan
tidak menutup kemungkinan untuk memodifikasi dan mengembangkan sendiri skema
tersebut.</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Tabel berikut ini menunjukkan kelompok kation dan pereaksi yang
digunakan dalam analisis kualitatif standar.</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Golongan</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Kation</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Pereaksi pengendap/kondisi</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">1</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Ag<sup>+</sup>, Hg<sup>+</sup>, Pb<sup>2+</sup></span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">HCl 6 M</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">2</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Cu<sup>2+</sup>, Cd<sup>2+</sup>, BI<sup>3+</sup>,
Hg<sup>2+</sup>,Sn<sup>4+</sup>, Sb<sup>3+</sup></span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">H2S 0,1 M pada pH 0,5</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">3</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Al<sup>3+</sup>, Cr<sup>3+</sup>, Co<sup>2+</sup>,
Fe<sup>2+</sup>,Ni<sup>2+</sup>,Mn<sup>2+</sup>, Zn<sup>2+</sup></span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">H2S 0,1 M pada pH 9</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">4</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Ba<sup>2+</sup>, Ca<sup>2+</sup>, Mg<sup>2+</sup>,
Na<sup>+</sup>,K<sup>+</sup>, NH<sup>4+</sup></span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Tidak ada pereaksi pengendap </span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">golongan</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Kation-kation golongan I
diendapkan sebagai garam klorida. Pemisahan kation golongan I tersebut dari
campuran sebagai garam klorida didasarkan fakta bahwa garam klorida dari
golongan I tidak larut dalam suasana asam (pH 0,5-1). Kation-kation dalam
golongan I yang terdiri atas Ag<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">+</span></sup>, Hg<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">+</span></sup>, dan Pb<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2+</span></sup>. Garam klorida
dari kation golongan I adalah: Hg<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>Cl<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>, AgCl, dan PbCl<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>. Pemisahan
masing-masing kation tersebut dilakukan berdasarkan cara sebagai berikut:</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">1. PbCl<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub> dipisahkan dari Hg<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>Cl<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub> dan AgCl
berdasarkan perbedaan kelarutan kation. PbCl<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub> larut dalam air
panas, sedangkan Hg<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>Cl<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub> dan AgCl tidak
dapat larut dalam air panas.</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">2. Hg<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>Cl<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub> dan AgCl
dipisahkan berdasarkan perbedaan kelarutan antara kompleks Hg(NH<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>)Cl dan [Ag(NH<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">3</span></sub>)<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>] yang dibentuk dengan penambahan amonia terhadap Hg<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>Cl<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub> dan AgCl setelah
PbCl<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub> terpisah. </span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Kompleks Hg(NH<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>)Cl berbentuk endapan hitam yang bercampur dengan Hg<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">+</span></sup>, sedangkan [Ag(NH<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">3</span></sub>)<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>] tidak berbentuk endapan.</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Identifikasi terhadap
ketiga kation tersebut setelah terpisah adalah sebagai berikut:</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">1. Pb<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2+</span></sup> dapat direaksikan dengan K<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>CrO<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">4</span></sub> yang akan
membentuk PbCrO<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">4</span></sub> (endapan kuning).Pb<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2+</span></sup> + CrO<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">4</span></sub><sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">-</span></sup> PbCrO<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">4</span></sub> (<i>endapan kuning)</i></span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">2. Ag<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">+</span></sup> dapat diidentifikasi dengan
mereaksikannya terhadap KI, sehingga terbentuk AgI (endapan kuning muda). Atau
mengasamkan filtrat yang diperoleh dari pemisahan dengan asam nitrat encer,
sehingga kiompleks [Ag(NH<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">3</span></sub>)<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>] terurai kembali dan dihasilkan endapan putih AgCl.</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">[Ag(NH<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">3</span></sub>)<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>] + KI -> AgI(<i>endapan
kuning muda) </i>+ 2 NH<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">3</span></sub></span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">3. Hg (I) dapat diidentifikasi dari warna endapan yang terjadi
pada pemisahannya dengan Ag<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">+</span></sup>, adanya Hg<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub><sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2+</span></sup> ditandai dengan
adanya endapan berwarna hitam.</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Hg<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>Cl<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub> + 2 NH<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">3</span></sub> -> [Hg(NH<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>)Cl + Hg] <i>(endapan
hitam)</i> + NH<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">4</span></sub><sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">+</span></sup> +Cl<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">-</span></sup></span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<b><span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">3. Prosedur Kerja</span></b><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">3.1. Alat</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Sentrifus</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Tabung Reaksi</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Lampu Spiritus</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Rak tabung reaksi</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Kaca arloji</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Botol reagen</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">3.2. Bahan</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">HCL 6 M dan 2 M</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">AgNO<sub>3</sub>, Hg<sub>3</sub>(NO<sub>3</sub>)<sub>2</sub> dan
Pb(NO<sub>3</sub>)<sub>2</sub></span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">K<sub>2</sub>CrO<sub>4</sub> 1 M</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Nh<sub>4</sub>OH 2 M</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">H<sub>2</sub>SO<sub>4</sub> 2 M</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">HNO<sub>3</sub> 2 M</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">KI</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">3.3. Cara Kerja</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">1. 1/2 dari larutan asal
ditambahkan 1 tetes HCL 6 M sampai tidak terbentuk endapan lagi. Selanjutnya
dilakukan pemisahan pendapan endapan dengan larutan dengan pemusing .</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">2. Endapan yang mungkin
terjadi mungkin mengandung endapan putih PbCl<sub>2 </sub>, Hg<sub>2</sub>Cl<sub>2</sub>,
dan AgCl. Selanjutnya endapan dicuci dua kali dengan air yang mengandung HCl 2
M dan dipanaskan lalu segera dipusingkan.</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">3. Cuci endapan dengan
air panas sampai air cucian tidak memberikan endapan dengan K<sub>2</sub>CrO<sub>4</sub>
1 M dimana tandanya Pb telah hilang dengan sempurna lalu tambahkan 1 ml NH<sub>4</sub>OH.</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">4. Larutan mungkin
mengandung PbCl, bagi larutan menjadi 2:</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">a. Tambahkan 1 tetes K<sub>2</sub>CrO<sub>4</sub>
1 M akan terbentuk endapan kuning .</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">b. Tambahkan 1 tetes H<sub>2</sub>SO<sub>4</sub>
2 M akan terbentuk endapan putih.</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">5. Endapan hitam yang
terdiri dari HgNH<sub>2</sub>Cl + Hg menunjukkan adanya Hg<sup>2+</sup></span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">6. Larutan mungkin
mengandung Ag(NH<sub>3</sub>)<sub>2</sub><sup>2+ </sup>bagi larutan menjadi 2:</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">a. Asamkan dengan HNO<sub>3
</sub>2 M akan terbentuk endapan putih.</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">b. Tambahkan beberapa
tetes KI terjadi endapan kuning.</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<b><span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">4. Data dan Perhitungan
serta reaksi</span></b><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<b><span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">No</span></b><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<b><span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Langkah Kerja</span></b><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<b><span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Pengamatan</span></b><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<b><span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Reaksi</span></b><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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<tr style="height: 94.2pt; mso-yfti-irow: 1;">
<td style="border-top: none; border: inset 1.0pt; height: 94.2pt; padding: 4.1pt 16.3pt 4.1pt 16.3pt; width: 51.75pt;" valign="top" width="69"><div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-margin-top-alt: auto;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">1</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
</td>
<td style="border-bottom: inset 1.0pt; border-left: none; border-right: inset 1.0pt; border-top: none; height: 94.2pt; padding: 4.1pt 16.3pt 4.1pt 16.3pt; width: 4.0cm;" valign="top" width="151"><div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-margin-top-alt: auto;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">1/2 dari larutan asal ditambahkan 1 tetes HCL
6 M sampai tidak terbentuk endapan lagi</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
</td>
<td style="border-bottom: inset 1.0pt; border-left: none; border-right: inset 1.0pt; border-top: none; height: 94.2pt; padding: 4.1pt 16.3pt 4.1pt 16.3pt; width: 134.65pt;" valign="top" width="180"><div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-margin-top-alt: auto;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Sampel tak berwarnaSampel tak berwarna </span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: 13.6pt; mso-margin-top-alt: auto; vertical-align: baseline;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">HCl tak berwarna, larutan ditetesi HCl
sebanyak 1 tetes kemudian larutan mula-mula berwana putih lama kelamaan
terbentuk endapan di dasar tabung</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
</td>
<td style="border-bottom: inset 1.0pt; border-left: none; border-right: inset 1.0pt; border-top: none; height: 94.2pt; padding: 4.1pt 16.3pt 4.1pt 16.3pt; width: 146.15pt;" valign="top" width="195"><div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-margin-top-alt: auto;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Sampel<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">(aq)</span> </sub>+ HCl<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">(aq) </span></sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">+</span> Pb<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2+</span></sup><sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">(aq)</span></sub> </span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
</td>
</tr>
<tr>
<td style="border-top: none; border: inset 1.0pt; padding: 4.1pt 16.3pt 4.1pt 16.3pt; width: 51.75pt;" valign="top" width="69"><div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-margin-top-alt: auto;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">2</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
</td>
<td style="border-bottom: inset 1.0pt; border-left: none; border-right: inset 1.0pt; border-top: none; padding: 4.1pt 16.3pt 4.1pt 16.3pt; width: 4.0cm;" valign="top" width="151"><div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-margin-top-alt: auto;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Endapan yang terjadi mungkin mengandung
endapan putih Pb<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">(aq)</span> </sub></span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
</td>
<td style="border-bottom: inset 1.0pt; border-left: none; border-right: inset 1.0pt; border-top: none; padding: 4.1pt 16.3pt 4.1pt 16.3pt; width: 134.65pt;" valign="top" width="180"><div class="MsoNormal" style="line-height: 150%; margin-bottom: 13.6pt; mso-margin-top-alt: auto; vertical-align: baseline;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Terdapat endapan putih yang diduga mengandung
Pb<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">(aq)</span> </sub></span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
</td>
<td style="border-bottom: inset 1.0pt; border-left: none; border-right: inset 1.0pt; border-top: none; padding: 4.1pt 16.3pt 4.1pt 16.3pt; width: 146.15pt;" valign="top" width="195"><div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-margin-top-alt: auto; vertical-align: baseline;">
<span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><!--[if gte vml 1]><v:shapetype
id="_x0000_t75" coordsize="21600,21600" o:spt="75" o:preferrelative="t"
path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f">
<v:stroke joinstyle="miter"/>
<v:formulas>
<v:f eqn="if lineDrawn pixelLineWidth 0"/>
<v:f eqn="sum @0 1 0"/>
<v:f eqn="sum 0 0 @1"/>
<v:f eqn="prod @2 1 2"/>
<v:f eqn="prod @3 21600 pixelWidth"/>
<v:f eqn="prod @3 21600 pixelHeight"/>
<v:f eqn="sum @0 0 1"/>
<v:f eqn="prod @6 1 2"/>
<v:f eqn="prod @7 21600 pixelWidth"/>
<v:f eqn="sum @8 21600 0"/>
<v:f eqn="prod @7 21600 pixelHeight"/>
<v:f eqn="sum @10 21600 0"/>
</v:formulas>
<v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect"/>
<o:lock v:ext="edit" aspectratio="t"/>
</v:shapetype><v:shape id="_x0000_i1025" type="#_x0000_t75" alt="" style='width:26.25pt;
height:9pt'/><![endif]--><!--[if !vml]--><img height="12" src="file:///C:\DOCUME~1\DOKTER~1\LOCALS~1\Temp\msohtmlclip1\01\clip_image001.gif" v:shapes="_x0000_i1025" width="35" /><!--[endif]-->Sampel + HCl<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">(aq)</span> </sub>+ Pb<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">(aq)</span> </sub>PbCl<sub>2<span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">(aq)</span> </sub><o:p></o:p></span></div>
</td>
</tr>
<tr>
<td style="border-top: none; border: inset 1.0pt; padding: 4.1pt 16.3pt 4.1pt 16.3pt; width: 51.75pt;" valign="top" width="69"><div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-margin-top-alt: auto;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">3</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
</td>
<td style="border-bottom: inset 1.0pt; border-left: none; border-right: inset 1.0pt; border-top: none; padding: 4.1pt 16.3pt 4.1pt 16.3pt; width: 4.0cm;" valign="top" width="151"><div class="MsoNormal" style="line-height: 150%; margin-left: 1.05pt; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Selanjutnya endapan dicuci dua kali dengan air
yang mengandung HCl 2 M dan dipanaskan lalu segera dipusingkan.</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
</td>
<td style="border-bottom: inset 1.0pt; border-left: none; border-right: inset 1.0pt; border-top: none; padding: 4.1pt 16.3pt 4.1pt 16.3pt; width: 134.65pt;" valign="bottom" width="180"><div class="MsoNormal" style="line-height: 150%; margin-bottom: 13.6pt; mso-margin-top-alt: auto; vertical-align: baseline;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Pada pencucuian I: larutan berwarna putih, ada
endapan yang lolos penyaringan</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: 13.6pt; mso-margin-top-alt: auto; vertical-align: baseline;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Pada pencucian II: larutan berwarna putih dan
tidak ada endapan yang lolos dalam penyaringan</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: 13.6pt; mso-margin-top-alt: auto; vertical-align: baseline;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Setelah pemanasan:</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: 13.6pt; mso-margin-top-alt: auto; vertical-align: baseline;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Endapan PbCl<sub>2</sub> akan larut dengan
kenaikan suhu </span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
</td>
<td style="border-bottom: inset 1.0pt; border-left: none; border-right: inset 1.0pt; border-top: none; padding: 4.1pt 16.3pt 4.1pt 16.3pt; width: 146.15pt;" valign="bottom" width="195"></td>
</tr>
<tr>
<td style="border-top: none; border: inset 1.0pt; padding: 4.1pt 16.3pt 4.1pt 16.3pt; width: 51.75pt;" valign="top" width="69"><div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-margin-top-alt: auto;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">4</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
</td>
<td style="border-bottom: inset 1.0pt; border-left: none; border-right: inset 1.0pt; border-top: none; padding: 4.1pt 16.3pt 4.1pt 16.3pt; width: 4.0cm;" valign="bottom" width="151"><div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-margin-top-alt: auto;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Larutan mungkin mengandung PbCl<sub>2</sub></span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
</td>
<td style="border-bottom: inset 1.0pt; border-left: none; border-right: inset 1.0pt; border-top: none; padding: 4.1pt 16.3pt 4.1pt 16.3pt; width: 134.65pt;" valign="top" width="180"><div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-margin-top-alt: auto;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Larutan dibagi menjadi 2</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
</td>
<td style="border-bottom: inset 1.0pt; border-left: none; border-right: inset 1.0pt; border-top: none; padding: 4.1pt 16.3pt 4.1pt 16.3pt; width: 146.15pt;" valign="bottom" width="195"></td>
</tr>
<tr>
<td style="border-top: none; border: inset 1.0pt; padding: 4.1pt 16.3pt 4.1pt 16.3pt; width: 51.75pt;" valign="top" width="69"><div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-margin-top-alt: auto;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">5</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
</td>
<td style="border-bottom: inset 1.0pt; border-left: none; border-right: inset 1.0pt; border-top: none; padding: 4.1pt 16.3pt 4.1pt 16.3pt; width: 4.0cm;" valign="top" width="151"><div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-margin-top-alt: auto;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Larutan a ditambahkan 1 tetes K<sub>2</sub>CrO<sub>4
</sub>1 M</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
</td>
<td style="border-bottom: inset 1.0pt; border-left: none; border-right: inset 1.0pt; border-top: none; padding: 4.1pt 16.3pt 4.1pt 16.3pt; width: 134.65pt;" valign="top" width="180"><div class="MsoNormal" style="line-height: 150%; margin-bottom: 13.6pt; mso-margin-top-alt: auto; vertical-align: baseline;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Setelah dipusingkan terbentuk endapan berwarna
kuning </span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
</td>
<td style="border-bottom: inset 1.0pt; border-left: none; border-right: inset 1.0pt; border-top: none; padding: 4.1pt 16.3pt 4.1pt 16.3pt; width: 146.15pt;" valign="top" width="195"><div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-margin-top-alt: auto;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Pb<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2+</span></sup><sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">(aq)</span></sub> + K<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>CrO<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">4(aq)</span></sub> </span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-margin-top-alt: auto; vertical-align: baseline;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">2 K<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">+</span></sup><sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">(aq)</span> </sub>+ PbCrO<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">4(s)</span></sub></span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
</td>
</tr>
<tr>
<td style="border-top: none; border: inset 1.0pt; padding: 4.1pt 16.3pt 4.1pt 16.3pt; width: 51.75pt;" valign="top" width="69"><div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-margin-top-alt: auto;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">6</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
</td>
<td style="border-bottom: inset 1.0pt; border-left: none; border-right: inset 1.0pt; border-top: none; padding: 4.1pt 16.3pt 4.1pt 16.3pt; width: 4.0cm;" valign="top" width="151"><div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-margin-top-alt: auto;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Larutan b ditambahkan 1 tetes H<sub>2</sub>SO<sub>4
</sub>2 M</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
</td>
<td style="border-bottom: inset 1.0pt; border-left: none; border-right: inset 1.0pt; border-top: none; padding: 4.1pt 16.3pt 4.1pt 16.3pt; width: 134.65pt;" valign="top" width="180"><div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-margin-top-alt: auto;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Setelah dipusingkan terbentuk endapan berwarna
putih</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
</td>
<td style="border-bottom: inset 1.0pt; border-left: none; border-right: inset 1.0pt; border-top: none; padding: 4.1pt 16.3pt 4.1pt 16.3pt; width: 146.15pt;" valign="top" width="195"><div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-margin-top-alt: auto;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Pb<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2+</span></sup><sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">(aq)</span></sub> + H<sub>2</sub>SO<sub>4<span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;"> (aq)</span></sub>
</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-margin-top-alt: auto;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">2 H<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">+</span></sup><sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">(aq)</span> </sub>+ PbSO<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">4(s)</span></sub></span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
</td>
</tr>
</tbody></table>
<div class="MsoNormal" style="line-height: 150%; margin-left: 14.2pt; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; text-indent: -14.2pt;">
<b><span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">5. Diskusi dan
Pembahasan</span></b><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; margin-left: 14.2pt; mso-margin-top-alt: auto; vertical-align: baseline;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Pada percobaan ini diuji
10 ml sampel yang diduga mengandung kation golongan I yaitu Pb<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2+</span></sup>, Hg<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2+</span></sup>, dan Ag<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">+</span></sup>. Terhadap sampel ini akan dilakukan pemisahan dan
identifikasi agar diperoleh kation-kation golongan I.</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; margin-left: 14.2pt; mso-margin-top-alt: auto; vertical-align: baseline;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Sampel yang diduga
mengandung Pb<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2+</span></sup>, Hg<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub><sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2+</span></sup>, dan Ag<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">+</span></sup></span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; margin-left: 14.2pt; mso-margin-top-alt: auto; vertical-align: baseline;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Kemudian ke dalam sampel
tersebut ditambahkan 1 tetes HCl 6M sampai terbentuk endapan. Setelah ditetesi
HCL 6 M Mula-mula larutan berwarna putih , lalu membentuk endapan berwarna
putih yang diduga mengandung Pb<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2+</span></sup></span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; margin-left: 14.2pt; mso-margin-top-alt: auto; vertical-align: baseline;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Pb<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2+</span></sup><sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">(aq)</span></sub> + HCl(<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">aq) -></span> </sub>PbCl<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2(s)</span></sub> + H<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">+</span></sup><sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">(aq) </span></sub></span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; margin-left: 14.2pt; mso-margin-top-alt: auto; vertical-align: baseline;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Endapan yang diperoleh
kemudian dicuci dengan HCl 2M dan aquades masing-masing sebanyak dua kali. Pada
pencucian pertama dengan HCl, larutan berwarna putih karena ada sebagian
endapan yang ikut dalam HCl, namun pada pencucian kedua larutan tak berwarna dan
tidak ada endapan yang lolos. Pada pencucian dengan menggunakan aquades baik
pertama maupun kedua, tidak ada endapan yang lolos sehingga larutan tidak
berwarna.Endapan yang sudah dicuci dengan HCl dan aquades . Larutan kemudian
dididihkan, selama pendidihan larutan semakin jernih .</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; margin-left: 14.2pt; mso-margin-top-alt: auto; vertical-align: baseline;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Kemudian larutan yang
sudah jernih di bagi 2 :</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-margin-top-alt: auto; text-indent: -18.0pt; vertical-align: baseline;">
<span style="border: 1pt none windowtext; font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%; padding: 0cm;">a. Ditambahkan 1 tetes </span><span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">K<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>Cr<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>O<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">4 </span></sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">1 M</span></span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; mso-margin-top-alt: auto; text-indent: -18.0pt; vertical-align: baseline;">
<span style="border: 1pt none windowtext; font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%; padding: 0cm;">b. Ditambahkan 1 tetes </span><span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">H<sub>2</sub>SO<sub>4 </sub>2
M</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; margin-left: 1.0cm; mso-margin-top-alt: auto; text-indent: -14.15pt; vertical-align: baseline;">
<span style="border: 1pt none windowtext; font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%; padding: 0cm;">· Pada </span><span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">PbCl<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2 </span></sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">yang ditambahkan 1 tetes </span>K<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>Cr<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>O<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">4 </span></sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">1 M</span></span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; margin-left: 1.0cm; mso-margin-top-alt: auto; vertical-align: baseline;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">diperoleh larutan
berwarna kuning yang jika didiamkan akan terbentuk endapan berwarna kuning di
dasar tabung reaksi. sesuai dengan persamaan reaksi :</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; margin-left: 1.0cm; mso-margin-top-alt: auto; vertical-align: baseline;">
<span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><!--[if gte vml 1]><v:shape id="_x0000_i1026"
type="#_x0000_t75" alt="" style='width:24.75pt;height:9pt'/><![endif]--><!--[if !vml]--><img height="12" src="file:///C:\DOCUME~1\DOKTER~1\LOCALS~1\Temp\msohtmlclip1\01\clip_image002.gif" v:shapes="_x0000_i1026" width="33" /><!--[endif]-->Pb<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2+</span></sup><sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">(aq)</span></sub> + K<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>Cr<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>O<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">7(aq) </span></sub>PbCrO<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">4(s)</span> </sub>+ K<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">+</span></sup><sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">(aq)</span></sub><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; margin-left: 1.0cm; mso-margin-top-alt: auto; vertical-align: baseline;">
<span style="border: 1pt none windowtext; font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%; padding: 0cm;">Hal tersebut membuktikan bahwa
sampel mengandung kation </span><span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Pb<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2+</span></sup></span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; margin-left: 1.0cm; mso-margin-top-alt: auto; text-indent: -14.15pt; vertical-align: baseline;">
<span style="border: 1pt none windowtext; font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%; padding: 0cm;">· Pada </span><span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">PbCl<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2 </span></sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">yang ditambahkan 1 tetes </span>H<sub>2</sub>SO<sub>4
</sub>2 M</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; margin-left: 1.0cm; mso-margin-top-alt: auto; vertical-align: baseline;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">diperoleh larutan
berwarna putih yang jika didiamkan akan terbentuk endapan berwarna putih di
dasar tabung reaksi. sesuai dengan persamaan reaksi :</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; margin-left: 1.0cm; mso-margin-top-alt: auto; vertical-align: baseline;">
<span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><!--[if gte vml 1]><v:shape id="_x0000_i1027"
type="#_x0000_t75" alt="" style='width:22.5pt;height:9pt'/><![endif]--><!--[if !vml]--><img height="12" src="file:///C:\DOCUME~1\DOKTER~1\LOCALS~1\Temp\msohtmlclip1\01\clip_image003.gif" v:shapes="_x0000_i1027" width="30" /><!--[endif]-->Pb<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2+</span></sup><sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">(aq)</span></sub> + H<sub>2</sub>SO<sub>4<span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;"> (aq)</span></sub> PbSO<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">4(s) </span></sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">+ </span>2 H<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">+</span></sup><sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">(aq)</span> </sub><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; margin-left: 1.0cm; mso-margin-top-alt: auto; vertical-align: baseline;">
<span style="border: 1pt none windowtext; font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%; padding: 0cm;">Hal tersebut membuktikan bahwa
sampel mengandung kation </span><span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Pb<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2+</span></sup></span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div align="center" class="MsoNormal" style="line-height: 150%; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; text-align: center;">
<span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><!--[if gte vml 1]><v:shape id="_x0000_i1028" type="#_x0000_t75"
alt="" style='width:9pt;height:38.25pt'/><![endif]--><!--[if !vml]--><img height="51" src="file:///C:\DOCUME~1\DOKTER~1\LOCALS~1\Temp\msohtmlclip1\01\clip_image004.gif" v:shapes="_x0000_i1028" width="12" /><!--[endif]-->Sampel (Ag<sup>+</sup>
, Hg<sup>+</sup> , Pb<sup>2+ </sup>)<o:p></o:p></span></div>
<div align="center" class="MsoNormal" style="line-height: 150%; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; text-align: center;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">+ HCL</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div align="center" class="MsoNormal" style="line-height: 150%; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; text-align: center;">
<span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><!--[if gte vml 1]><v:shape id="_x0000_i1029" type="#_x0000_t75"
alt="" style='width:9pt;height:84pt'/><![endif]--><!--[if !vml]--><img height="112" src="file:///C:\DOCUME~1\DOKTER~1\LOCALS~1\Temp\msohtmlclip1\01\clip_image005.gif" v:shapes="_x0000_i1029" width="12" /><!--[endif]-->PbCl<sub>2</sub>
(endapan putih)<o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Dicuci
dengan aquades + HCl 2 M 2 kali</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Dididihkan
dengan air 100<sup>o </sup>C </span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; text-indent: 36.0pt;">
<span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><!--[if gte vml 1]><v:shape
id="_x0000_i1030" type="#_x0000_t75" alt="" style='width:9pt;height:41.25pt'/><![endif]--><!--[if !vml]--><img height="55" src="file:///C:\DOCUME~1\DOKTER~1\LOCALS~1\Temp\msohtmlclip1\01\clip_image006.gif" v:shapes="_x0000_i1030" width="12" /><!--[endif]--><!--[if gte vml 1]><v:shape id="_x0000_i1031"
type="#_x0000_t75" alt="" style='width:9pt;height:41.25pt'/><![endif]--><!--[if !vml]--><img height="55" src="file:///C:\DOCUME~1\DOKTER~1\LOCALS~1\Temp\msohtmlclip1\01\clip_image006.gif" v:shapes="_x0000_i1031" width="12" /><!--[endif]-->Pb<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2+</span></sup><sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">(aq)</span></sub> <!--[if gte vml 1]><v:shape
id="_x0000_i1032" type="#_x0000_t75" alt="" style='width:9pt;height:41.25pt'/><![endif]--><!--[if !vml]--><img height="55" src="file:///C:\DOCUME~1\DOKTER~1\LOCALS~1\Temp\msohtmlclip1\01\clip_image006.gif" v:shapes="_x0000_i1032" width="12" /><!--[endif]-->Pb<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2+</span></sup><sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">(aq)</span></sub> <o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto; text-indent: 36.0pt;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">+ K<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>Cr<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>O<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">7(aq)</span></sub> +H<sub>2</sub>SO<sub>4<span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;"> (aq)</span></sub></span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; mso-margin-bottom-alt: auto; mso-margin-top-alt: auto;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">PbCrO<sub>4</sub>(endapan
kuning) PbSO<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">4(s) </span></sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">(endapan putih)</span></span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; margin-left: 14.2pt; mso-margin-top-alt: auto; text-indent: -14.2pt; vertical-align: baseline;">
<b><span style="border: 1pt none windowtext; font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%; padding: 0cm;">6. Kesimpulan dan Saran</span></b><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; margin-left: 54.0pt; mso-margin-top-alt: auto; text-indent: -36.0pt; vertical-align: baseline;">
<span style="border: 1pt none windowtext; font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%; padding: 0cm;">6.1. Kesimpulan</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: 13.6pt; margin-left: 35.45pt; margin-right: 0cm; margin-top: 0cm; vertical-align: baseline;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Dari percobaan yang
telah dilakukan, dapat disimpulkan beberapa hal sebagai berikut :</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; margin-left: 35.45pt; margin-right: 0cm; margin-top: 0cm; text-indent: -17.45pt; vertical-align: baseline;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">1. Kation golongan I dapat membentuk garam klorida jika
direaksikan dengan Cl<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">-</span></sup>. Senyawa yang terbentuk berupa
AgCl, Hg<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>Cl<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>, dan PbCl<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>. PbCl<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span> </sub>dapat dipisahkan
dari senyawa klorida Hg dan Ag dengan cara memanaskan campuran garam klorida
sampai mendidih kemudian disaring. Pb<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2+</span></sup> akan terlarut
karena kation Pb<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2+</span> </sup>mudah larut dalam air panas
dan asam klorida pekat. </span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; margin-left: 35.45pt; margin-right: 0cm; margin-top: 0cm; text-indent: -17.45pt; vertical-align: baseline;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">2. Identifikasi kation golongan I dapat dilakukan dengan
penambahan K<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>Cr<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2</span></sub>O<sub><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">7</span></sub> yang dapat membentuk endapan berwarna kuning jika
direaksikan dengan Pb<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2+,</span> </sup>dan juga dengan H<sub>2</sub>SO<sub>4
</sub>yang akan membentuk endapan berwarna putih . </span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; margin-left: 35.45pt; margin-right: 0cm; margin-top: 0cm; text-indent: -14.15pt; vertical-align: baseline;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">3. Berdasarkan data hasil pengamatan, secara kualitatif dapat
dibuktikan bahwa sampel yang diuji mengandung kation golongan I Pb<sup><span style="border: none windowtext 1.0pt; mso-border-alt: none windowtext 0cm; padding: 0cm;">2+</span></sup>.</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; margin-left: 54.0pt; mso-margin-top-alt: auto; text-indent: -36.0pt; vertical-align: baseline;">
<span style="border: 1pt none windowtext; font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%; padding: 0cm;">6.2. Saran</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; margin-left: 54.0pt; mso-margin-top-alt: auto; vertical-align: baseline;">
<span style="border: 1pt none windowtext; font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%; padding: 0cm;">Pada pratikum kimia tersebut
sebenarnya sudah sempurna . Cuman pada modul belum dijelaskan jumlah / banyak
bahan yang diperlukan . contohnya pada sampel belum dijelaskan berapa ml sampel
yang dipakai dan juga pada pencucian , berapa ml dipakai aquades , HCL , dah
air panas yang di pakai untuk sekali pencucian. </span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div align="center" class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; margin-left: 72.0pt; mso-margin-top-alt: auto; text-align: center; vertical-align: baseline;">
<b><span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">Daftar Pustaka</span></b><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
<div class="MsoNormal" style="line-height: 150%; margin-bottom: .0001pt; margin-bottom: 0cm; margin-left: 72.0pt; mso-margin-top-alt: auto; text-indent: -18.0pt; vertical-align: baseline;">
<span style="font-family: 'Times New Roman', serif; font-size: 14pt; line-height: 150%;">· PENUNTUN PRATIKUM
KIMIA DASAR 2 oleh Dra. Iryani, M.S dan Edi Nasra, S.Si., M.Si</span><span style="font-family: "Times New Roman","serif"; font-size: 14.0pt; line-height: 150%; mso-fareast-font-family: "Times New Roman";"><o:p></o:p></span></div>
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