A cell is set up with copper and lead electrodes in contact with CuSO4(aq) and Pb(NO3) 2(aq) , respectively, at 25°C. The standard reduction potentials are Pb2+ + 2e- Pb E° = -0.13 V
Cu2+ + 2e- Cu E° = +0.34 V
If sulfuric acid is added to the Pb(NO3) 2 solution, forming a precipitate of PbSO4, the cell potential
A) It is impossible to tell what will happen.
B) decreases.
C) is unchanged.
D) increases.
Correct Answer:
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