Kuis Hukum faraday Pak Kholid OKeee
Quiz
•
Chemistry
•
12th Grade
•
Hard
Peserta PPG 07919
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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
Ke dalam 1000 mL larutan AgNO3 dialirkan arus listrik sejumlah 965 Coloumb , maka pH larutan yang terjadi setelah elektrolisis adalah
1
2
3
4
5
2.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
Larutan asam klorida (HCl) dielektrolisis dengan elektroda C, berikut adalah zat hasil reaksi di katoda adalah
Gas Hidrogen (H2)
Cl2
ion H+
ion OH-
ion Cl
3.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
Pada elektrolisis larutan LSO4 dengan menggunakan elektroda Pt ternyata dihasilkan 0,3175 gram logam L di katoda, larutan hasil elektrolisis tepat dinetralkan dengan 50 mL larutan Ca(OH)2 0,1 M, maka Massa atom relatif (Ar) logam L adalah....
63,5
84
132
180
342
4.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
larutan asam sulfat H2SO4 dielektrolisis dengan elektroda Pt dengan muatan 4 Faraday, jika diukur pada kondisi STP maka gas yang dihasilkan di katoda adalah .... L
22,4
44,8
67,2
112
224
5.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
Waktu yang diperlukan untuk mengendapkan semua tembaga dari 200 mL tembaga sulfat CuSO4 1M dengan arus 10 A adalah....
965 sekon
1930 sekon
3860 sekon
5790 sekon
9650 sekon
6.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
Arus listrik dialirkan melalui larutan Ni(NO3)2 sehingga dihasilkan 5,9 gram logam Ni. Bila jumlah arus listrik yang sama digunakan untuk elektrolisis larutan NaCl, maka akan dihasilkan gas Cl2 pada keadaan STP sebanyak …. (Ar Ni = 59)
1,12 L
2,24 L
3,36 L
11,2 L
22,4 L
7.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
Ke dalam dua sel yang berisi larutan LSO4 dan AgNO3 yang disusun secara seri dialirkan arus listrik ternyata diendapkan 3,25 gram logam L dan 10,8 gram logam Ag (Ar Ag = 108). Massa atom relatif L adalah ....
32,5
63,5
65
70
72,5
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