0.535 o* + 4 e→ 6 H20 1.229 e e H2 + 2 OH" -0.828 -1.180 rons as e". Use the smallest integer coefficients possible. on at anode: + on at cathode: +
0.535 o* + 4 e→ 6 H20 1.229 e e H2 + 2 OH" -0.828 -1.180 rons as e". Use the smallest integer coefficients possible. on at anode: + on at cathode: +
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter17: Electrochemistry
Section: Chapter Questions
Problem 59P
Related questions
Question
![An aqueous MnI2 solution is electrolyzed under 1 bar pressure using platinum electrodes. Write the half-
reactions predicted to occur at the anode and cathode, based on the standard cell potentials given below.
Standard Reduction Potentials (Volts) at 25 °C
I2 + 2e 21
0.535
02 + 4 H30+ + 4 e→ 6 H20
1.229
2 H20 + 2 e → H2 + 2 OH
-0.828
Mn2+ + 2e" →Mn
-1.180
Enter electrons as e". Use the smallest integer coefficients possible.
Half-reaction at anode:
Half-reaction at cathode:
+
>
+](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdba417f5-a4d2-4d92-bcc4-12015dcf226e%2F788db779-4e06-404b-9802-d3adbbe19ad1%2Fctprmzp_processed.png&w=3840&q=75)
Transcribed Image Text:An aqueous MnI2 solution is electrolyzed under 1 bar pressure using platinum electrodes. Write the half-
reactions predicted to occur at the anode and cathode, based on the standard cell potentials given below.
Standard Reduction Potentials (Volts) at 25 °C
I2 + 2e 21
0.535
02 + 4 H30+ + 4 e→ 6 H20
1.229
2 H20 + 2 e → H2 + 2 OH
-0.828
Mn2+ + 2e" →Mn
-1.180
Enter electrons as e". Use the smallest integer coefficients possible.
Half-reaction at anode:
Half-reaction at cathode:
+
>
+
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