5. A concentration cell is constructed with copper electrodes and Cu2+ in each compartment. In one compartment, the [Cu2+]=1.0103M and in the other compartment, the [Cu2+]=2.0M. Calculate the potential for this cell at 25C. The standard reduction potential for Cu2+ is +0.34V. 6. Calculate the equilibrium constant at 25C for the reaction: Al+3Cu2+2Al3++3Cu. 7. A cell is set up with copper and lead electrodes in contact with CuSO4(aq) and Pb(NO3)2(aq), respectively, at 25C. The standard reduction potentials are: Pb2++2ePbCu2++2eCuE=0.13VE=+0.34V If sulfuric acid is added to the Pb(NO3)2 solution, forming a precipitate of PbSO4, what would happen to the cell potential. Give brief explanation