The following half-cells are on the left and coupled with the standard hydrogen electrode on the right to form a galvanic cell. Calculate the cell potential. Indicate which electrode would be the cathode if each cell were short-circuited.
(a) Cu |Cu²⁺(0.0505 M)
(b) Cu |CuI(sat’d), KI(0.0893 M)
(c) Pt, H₂(0.855 atm) |HCl (1.00 x 10^-4M)
(d) Pt | Fe³⁺ (0.0792 M), Fe²⁺(0.1240 M)
(e) Ag |Ag(CN)₂^- (0.0678 M), KCN(0.0552 M)