What would be the reduction potential of an electrode at 298 K, which originally contained 1M K2Cr2O7 solution in acidic buffer solution of pH = 1.0 and which was treated with 50% of the Sn necessary to reduce all Cr2O7 2– to Cr3+ . Assume pH of solution remains constant.
2.303RT / F = 0.06
(a) 1.285 V
(b) 1.193 V
(c) 1.187 V
(d) None of these