Calculate e degree for the following half-reaction, fes(s) + 2e^- fe(s) + s^2^-(aq) given that the solubility product for fes at 25 degree c is 8.0 times 10^-19 and the standard reduction potential of the half-reaction shown is -0.440 v. fe^2+(aq) + 2e^- fe(s) construct the line notation of a cell that consists of a saturated calomel reference electrode, the fes half-reaction shown at the top of the problem, and an iron indicator electrode, which can be used to measure the s^2- concentration of a solution if the cell described by the line notation above has a potential of -1.035 v, what is the ps of the solution?