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 aprecipitate of PbSO4, the cell potential:
A) increases
B) decreases
C) is unchanged
D) can't tell what will happen