
Sel Volta (Formatif)
Authored by Niti Saraswati
Chemistry
12th Grade
Used 1+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui :
Cu2+(aq) + 2e– → Cu E° = + 0,34 volt
Zn2+(aq) + 2e– → Zn E° = – 0,76 volt
Bila kedua logam tersebut dipasangkan untuk membentuk sel volta, maka pernyataan berikut yang tidak benar adalah …
Elektrode Zn teroksidasi dan Elektrode Cu tereduksi
Elektrode Zn Sebagai Anode dan Cu sebagai Katode
Potensial sel yang dihasilkan adalah 1,10 volt
Notasi selnya : Zn(s)|Zn2+(aq)||Cu2+(aq)|Cu E°sel = 1,10 V
Dalam sistem sel volta tersebut elektron bergerak dari Cu menuju Zn
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Perhatikan Reaksi :
Mg2+(aq) + 2e– → Mg E° = – 2,37 volt
Ni2+(aq) + 2e– → Ni E° = – 0,25 volt
Potensial yang dihasilkan oleh reaksi:
Mg + NiCl2 → MgCl2 + Ni
adalah …
-2,12 volt
+2,12 volt
+1,06 volt
-2,62 volt
+0,80 volt
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Diketahui :
Ag+ / Ag E° = + 0,80 volt
Cd2+/ Cd E° = – 0,40 volt
Potensial sel yang dihasilkan dari pasangan elektrode Cd dengan Ag adalah …
0,40 V
0,44 V
0,76 V
0,80 V
1,20 V
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Perhatikan gambar sel volta yang disajikan berikut!
Diagram sel yang tepat untuk gambar tersebut adalah ....
Al | Al3+ ‖‖ Sn2+|Sn
Al3+ | Al ‖‖ Sn | Sn2+
Sn2+ | Sn ‖‖ Al | Al3+
Sn2+ | Sn ‖‖ Al3+ | Al
Sn | Sn2+ ‖‖ Al3+ |Al
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Perhatikan potensial elektrode standar berikut!
Cr3+ (aq) + 3e → Cr (s) E° = -0,71 Volt
Ag+ (aq) + e → Ag (s) E° = +0,80 Volt
Al3+ (aq) + 3e → Al (s) E° = -1,66 Volt
Zn2+ (aq) + 2e → Zn (s) E° = -0,74 Volt
Diagram sel yang dapat berlangsung spontan adalah ....
Ag | Ag+ || Cr3+ | Cr
Ag | Ag+ || Zn2+ | Zn
Cr | Cr3+ || Al3+ | Al
Zn | Zn2+ || Ag+ | Ag
Zn | Zn2+ || Al3+ | Al
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