Question

The standard reduction potential for the reduction of AgBr (s) is +0.095 V. The standard reduction potential for the reduction of Ag+ (aq) is +0.799 V.(a) Calculate the standard potential for the cell: Ag (s) | AgBr (s) | Br- (aq) || Ag+ (aq) | Ag (s)(b) Determine the Ksp for AgBr.(c) A silver electrode coated with AgBr (s) is immersed in a sample solution with an unknown concentration of Br- (aq). When this half-cell is connected to a standard Ag+ /Ag electrode, the measured potential is +0.50 V, with the Ag+ /Ag electrode acting as the cathode. What is the concentration Brin the sample?