Chapter 24, Problem 24.4QAP

Halide ions can he deposited at a silver anode, the reaction being
  Ag(s) + X^- $\to$ AgX(s) +e^-
Suppose that a cell was formed by immersing a silver anode in an analyte solution that was 0.0250 M Cl^-,Br^-, and I ^-ions and connecting the half-cell to a saturated calomel cathode via a salt bridge.
(a) Which halide would form first and at what potential? Is the cell galvanic or electrolytic?
(b) Could I^- and Br^- be separated quantitatively? (Take 1.00 × l0^-5 M as the criterion for quantitative removal of an ion.) If a separation is feasible, what range of cell potential could he used?
(c) Repeat part (b) for I^- and Cl^-.
(d) Repeat part (b) for Br^- and Cl^-.