
UTS Kimia Pemisahan
Authored by Yulia Sukmawardani
Chemistry
University
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37 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Berikut merupakan tahapan analisis gravimetri...
(Pengendapan-pencucian -penyaringan-pengeringan dan pemijaran-penimbangan) endapan
(Pengendapan- penyaringan- pencucian-pengeringan dan pemijaran-penimbangan) endapan
(Pengendapan- penimbangan -pencucian -penyaringan-pengeringan dan pemijaran) endapan
(Pengendapan-pencucian -pengeringan dan pemijaran-penimbangan-penyaringan) endapan
(Pengendapan-pencucian -penyaringan -penimbangan-pengeringan dan pemijaran) endapan
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berikut yang bukan termasuk peralatan utama pada metode gravimetri adalah….
neraca
krusible
buret
desikator
furnace
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Berikut syarat-syarat yang harus dipenuhi dalam analisis gravimetric, kecuali...
Zat yang akan ditentukan harus dapat diendapkan dengan sempurna, endapan harus stabil dan sukar larut.
Endapan harus murni dan mudah disaring.
Endapan harus dapat diubah menjadi suatu senyawa dengan susunan kimia tertentu.
Endapan dapat dihitung secara stokiometri.
Endapan harus berbentuk kirstal.
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Sebanyak 2,0008 gram sample garam BaCl2.xH2O dipanaskan pada suhu 500oC, didinginkan dan ditimbang, pekerjaan ini dilakukan berulang kali hingga didapat berat konstan sebesar 1,6997 gram, maka kadar air kristal dalam sample adalah….
14,05 %
15,05 %
16,05 %
17,05 %
18,05 %
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pada penetapan kadar Fe sbg Fe2O3 , untuk mengoksidasi besi(II) menjadi besi(III) digunakan pereaksi ...
HCl
HNO3
HCl + HNO3
NH4OH
aquadest
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Endapan yang terbentuk pada penetapan Cu dalam CuSO4 adalah Cu(OH)2 yang apabila dipanaskan akan terbentuk…
Cu dan CuO
Cu dan H2O
CuO dan H2O
CuO
Cu2O
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Pada penetapan Fe sebagai Fe2O3 faktor gravimetric sebesar… (Ar Fe = 56; O = 16)
0,65
0,70
0,75
0,80
0,85
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