
Latihan Soal Elektrokimia

Quiz
•
Chemistry
•
1st Grade - University
•
Hard
FATIKATUN NAFSIYAH
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25 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Sel elektrokimia yang melibatkan sumber energi listrik adalah ...
Elektrokimia
Sel Elektrolisis
Elektromagnetik
Sel Galvani
Sel Volta
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui harga potensial electrode (E0) berikut:
Cd2+(aq) + 2e- ↔ Cd(s) E0=-0.40 volt
Zn2+(aq) + 2e- ↔ Zn(s) E0=-0.76 volt
Ni2+(aq) + 2e- ↔ Ni(s) E0= -0.23 volt
Urutan daya pengoksidasi (oksidator) mulai dari yang lemah ke yang kuat adalah…
Cd>Zn>Ni
Zn>Ni>Cd
Cd>Ni>Zn
Zn>Cd>Ni
Ni>Cd>Zn
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Pada percobaan sel volta digunakan dua elektroda Pb dan Ni menghasilkan potensial sel sebesar +0.12 volt. Jika diketahui potensial reduksi Ni2+(aq) + 2e- ↔ Ni(s) E0= -0.23 volt
Maka potensial reduksi Pb sebesar…
+0.13 volt
-0.35 volt
-0.13 volt
+0.35 volt
-0.12 volt
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dari data potensial reduksi berikut:
F2(g) + 2e- ↔ 2F-(aq) E0=+2.87 volt
Cl2(g) + 2e- ↔ 2Cl-(aq) E0=+1.36 volt
Br2(g) + 2e- ↔ 2Br-(aq) E0=+1.07 volt
I2(g) + 2e- ↔ 2I-(aq) E0=+0.54 volt
2Ag+(aq) + 2e- ↔ 2Ag(s) E0=+0.80 volt
Reaksi yang dapat berlangsung secara spontan adalah…
2Ag(s) + 2Br-(aq) ↔ 2Ag+(aq) + Br2(g)
2Ag(s) + 2Cl-(aq) ↔ 2Ag+(aq) + Cl2(g)
2Ag+(aq) +2I-(aq) ↔ 2Ag(s) + I2(g)
2Ag+(aq) +2Br-(aq) ↔ 2Ag(s) + Br2(g)
2Ag(s) + 2F-(aq) ↔ 2Ag+(aq) + F2(g)
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Pada hasil percobaan sel volta di atas, yang menghasilkan potensial sel bernilai positif dan arah aliran elektron yang benar nomor…
1,2, dan 4
2 dan 5
4 dan 5
2,3, dan 5
1, 3 dan 4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Penulisan diagram sel yang tepat dari sel volta diatas adalah…
Cu(s)│Cu+(aq)║Fe2+(aq)│Fe(s)
Fe(s)│Fe2+(aq)║Cu+(aq)│Cu(s)
Fe2+(aq)│Fe(s)║ Cu+(aq)│Cu(s)
Fe2+(aq)│Fe(s)║ Cu(s)│Cu+(aq)
Fe(aq)│Fe2+(s)║Cu+(s)│Cu(aq)
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Berdasarkan data sebagai berikut:
Fe2+ + 2e → Fe E0 = -0,44 V
Pb2+ + 2e → Pb E0 = -0,13 V
Zn2+ + 2e → Zn E0 = -0,76 V
Sn2+ + 2e → Sn E0 = -0,14 V
Maka reaksi yang dapat berlangsung dalam keadaan standar adalah....
1) Fe2+ + Zn → Fe + Zn2+
2) Pb2+ + Fe → Pb + Fe2+
3) Sn2+ + Zn → Sn + Zn2+
4) Zn2+ + Pb → Zn + Pb2+
1, 2, 3
1, 3
2, 4
4
1, 2, 3, 4
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