
sel volta dan elektrolisis
Authored by Ferdi Syahdani
Chemistry
12th Grade
Used 20+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Diketahui potensial elektrode Seng dan tembaga sebagai berikut :
Zn2+ + 2e → Zn E͒ = -0,76 Volt
Cu2+ + 2e → Cu E͒ = +0,34 Volt
Besarnya Eosel agar reaksi dapat berlangsung adalah ....... Volt
-1,10
+1,10
+0,76
-0,76
+2,00
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui data potensial reduksi standar :
Zn2+ + 2e → Zn Eo = -0,76 V
Mg2+ + 2e → Mg Eo = -2,38 V
Cu2+ + 2e → Cu Eo = +0,34 V
Notasi sel yang dapat berlangsung spontan adalah....
Fe |Fe2+ ||Zn2+ |Zn
Zn |Zn2+ ||Mg2+ |Mg
Cu |Cu2+ ||Zn2+ |Zn
Cu |Cu2+ ||Fe2+ |Fe
Mg |Mg2+ ||Cu2+ |Cu
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui data potensial reduksi standar :
Sn2+ + 2e → Sn Eo = -0,14 V
Cu2+ + 2e → Cu Eo = +0,34 V
Pb2+ + 2e → Pb Eo = -0,13 V
Ag+ + e → Ag Eo = +0,80 V
Notasi sel yang dapat berlangsung spontan adalah.....
Cu |Cu2+ ||Sn2+ |Sn
Pb |Pb2+ ||Sn2+ |Sn
Cu |Cu2+ ||Pb2+ |Pb
Ag |Ag+ ||Cu2+ |Cu
Cu |Cu2+ ||Ag+ |Ag
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Diketahui beberapa data sebagai berikut :
Sn2+ + 2e → Sn Eo = -0,14 V
Cu2+ + 2e → Cu Eo = +0,34 V
Notasi sel yang dapat berlangsung adalah....
Sn |Sn2+ ||Cu2+ |Cu
Cu2+ |Cu ||Sn2+ |Sn
Cu2+|Cu ||Sn |Sn2+
Sn |Sn2+ ||Cu2+ |Cu
Sn2+ |Sn ||Cu2+ |Cu
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui potensial reduksi standar berikut :
Ba2+ + 2e → Ba Eo = -2,90 V
Cd2+ + 2e → Cd Eo = -0,40 V
Cu2+ + 2e → Cu Eo = +0,34 V
Ag+ + e → Ag Eo = +0,80 V
Pt2+ + 2e → Pt Eo = +1,2 V
Reaksi yang tidak berlangsung spontan ialah......
Ba |Ba2+ ||Cd2+ |Cd
Cu |Cu2+ ||Ag+ |Ag
Ag |Ag+ ||Pt2+ |Pt
Ag |Ag+ ||Cu2+ |Cu
Ba |Ba2+ ||Ag+ |Ag
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Bila diketahui potensial elektroda standar :
Al3+ (aq) + 3e ----- Al (s) E° = -1,76 volt
Zn2+ (aq) + 2e ------ Zn (s) E° = -0,76 volt
Fe2+ (aq) + 2e ------ Fe (s) E° = -0.44 volt
Cu2+ (aq) + 2e ------ Cu (s) E° = +0,34 volt
Bagan sel volta yang E° selnya paling besar adalah ….
Al/Al3+//Zn2+/Zn
Fe/Fe2+//Al3+/Al
Zn/Zn2+//Cu2+ /Cu
Al/Al3+//Cu2+/Cu
Al3+/Al//Cu2+/Cu
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Bahan yang digunakan sebagai elektrode pada sel aki (accu) adalah ….
Pt dan C
Zn dan C
PbO2 dan PbO
PbO2 dan PB2O3
Pb dan PbO2
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