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Question
What reaction occurs at the anode during the electrolysis of aqueous CuSO4?
| Reduction Half-Reaction | Eº(V) |
2H2O(l) + 2e- H2(g) + 2OH-(aq) | -0.83 |
| 2H+(aq) + 2e- H2(g) | 0.00 |
| Cu2+(aq) + 2e- Cu(s) | 0.34 |
| O2(g) + 4H+(aq) + 4e- 2H2O(l) | 1.23 |
A) 2H2O(l) →O2(g) + 4H+(aq) + 4e-
B) Cu(s) →Cu2+(aq) + 2e-
C) 2H2O(l) + 2e-→H2(g) + 2OH-(aq)
D) Cu2+(aq) + 2e-→Cu(s)
E) 2H+(aq) + 2e-→H2(g)
Answer
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