Question

The standard potential for the following galvanic cell is +0.90 V:
3 Cu2+(aq) + 2 Ga(s) 3 Cu(s) + 2 Ga3+(aq)
Given that the standard reduction potential for the Cu2+/Cu half-cell is +0.34 V, what is the standard reduction potential for the Ga3+/Ga half-cell?
A) -1.34 V
B) -0.56 V
C) +0.56 V
D) +1.36 V

Answer

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