Question

1. A voltaic cell is constructed that uses the following reaction and operates at 298 K:
Zn(s)+Ni2+(aq)→Zn2+(aq)+Ni(s).

a. What is the emf of the cell when [Ni2+]= 0.170 M and [Zn2+]= 0.870 M ?

2. A voltaic cell is constructed with two silver-silver chloride electrodes, each of which is based on the following half-reaction:
AgCl(s)+e−→Ag(s)+Cl−(aq).
The two cell compartments have [Cl−]=1.49×10^−2 M and [Cl−]= 3.00 M , respectively.

a. What is the cell emf for the concentrations given?