Question

A mixture having a volume of 10.00 mL and containing 0.1000 M Ag+ and 0.04500 M Hg22+ was titrated with 0.0800 M KCN to precipitate Hg2(CN)2 and AgCN.

1. Ksp(Hg2(CN)2)=5*10^-40

   Ksp(AgCN)=2.2*10^-16

2. Calculate volume of KCN required to reach first and second equivalence points

   and sketch by hand the expected titration curve.