(a) Determine the standard Gibbs energy of reaction and the equilibrium constant for the following reactions: (1) AgBr(s) + Ag* + Br (ii) PO+H H HPO (iii) HPO +H + H,PO (iv) AgBr(s) + C + AgCl(s) + Br (v) AgCl(s) +Br + AgBr(s) + CT (b) A solution contains 10-2MCI, 10-- M Ag, and 10 M AgCl(s) initially. Is the reaction for precipitation of AgCl(s) from Ag and Chat equilibrium? If not, what is the Gibbs energy of reaction for the formation of more AgCl(s) under these conditions? What reaction will occur spontaneously? Find the concentrations of all the species, including the solid, when equilibrium is attained. Assume all activity coefficients are unity