Kuis kimia elektrolisis KTI
Quiz
•
Chemistry
•
12th Grade
•
Practice Problem
•
Medium
Gamer Jadi
Used 4+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika larutan Na2SO4 dielektrolisis dengan elektroda Cu, reaksi yang terjadi pada anode adalah…
2H2O + 2e– → H2 + 2OH–
2H2O → 4H+ + O2+ 4e–
Na →Na+ + e–
Cu2+ + 2e– → Cu
Cu → Cu2+ + 2e–
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sejumlah arus listrik yang sama dialirkan kedalam larutan AgNO3 dan larutan CuSO4. Jika massa tembaga (Cu) yang diendapkan 12,7 gram, maka massa perak (Ag) yang diendapkan adalah … (Ar Cu = 63,5 dan Ar Ag = 108 )
43,2 gram
43,2 gram
0,432 gram
10,8 gram
1,08 gram
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada elektrolisis lelehan MgCl2, pada katode dan anode berturut dibebaskan …
H2 dan Cl2
H2 dan O2
Mg dan Cl2
Mg dan H2
Mg dan O2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada elektrolisis larutan CuSO4 dihasilkan 25,4 gr endapan Cu pada katode. Hitunglah volume gas H2 (00C, 1 atm) yang dibebaskan pada elektrolisis larutan H2SO4 encer dengan jumlah arus yang sama (Ar Cu = 63,5; Ar H= 1)
8,96 L
96,8 L
69,8 L
69,8 L
59,8 L
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Alumunium diperoleh dari elektrolisis lelehan Al2O3. Berapa alumunium dapat diperoleh setiap jam jika digunakan arus 100 ampere ?
30,23 gr
33,57 gr
40 gr
56,67 gr
35
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada suatu elektrolisis larutan MSO4 di ka- toda terbentuk 0,28 gram M. Jika larutan ha- sil elektrolisis dapat dinetralkan oleh 50 ml larutan NaOH 0,2 M, maka massa atom re- latif M adalah ....
28
42
56
70
84
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada elektrolisis 400 mL larutan CuSO4 0,01 M, untuk mengendapkan seluruh ion tembaga diperlukan arus listrik dengan muatan sebesar ....
0,024
0,008
0,004
0,003
0,001
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