A voltaic cell is constructed from an Ni2+ (aq) - Ni(s) half-cell and an Ag+(aq)-Ag(s) half-cell. The

Question:

A voltaic cell is constructed from an Ni2+ (aq) - Ni(s) half-cell and an Ag+(aq)-Ag(s) half-cell. The initial concentration of Ni2+ (aq) in the Ni2+ -Ni half-cell is [Ni2+] = 0.0100 M. The initial cell voltage is + 1.12 V.
(a) By using data in Table 20.1, calculate the standard emf of this voltaic cell.
(b) Will the concentration of Ni2+ (aq) increase or decrease as the cell operates?
(c) What is the initial concentration of Ag+ (aq) in the Ag+ -Ag half-cell?