At 25°C for each of the following voltaic cells, write down the balanced half-reactions, the overall balanced reactions, and determine the cell potentials.
1. Mn(s) | Mn2+(0.023 M, aq)|| Pb2+(0. 045 M, aq) | Pb(s)
2. Pt(s) | H2 (0.54atm, g) | H+(0.0063 M,aq) || Cl-(0. 0425 M, aq) | AgCl(s) |Ag(s)