Q.4.1 The solubility product of Ag,SO, is 1.5 x 10%. Calculate the solubility of this salt in (5) an aqueous solution that is 0.20 M NazSO. (Assume that none of the ions react appreciably with water to form H' or OH). Q.4.2 A 0.020 mol sample of Fe(OH)s (s) was added to 1.0L of water. A strong acid was (5) added to this until the precipitate dissolved (assume negligible volume change due to the addition of acid). Determine the pH at which all of the solid Fe(OH)3 dissolved. The Kp for Fe(OH), is 3 x 1039.