Silver ion forms the complex Ag(CN)2– with Kf = 9.8 × 1021. What is the minimum amount of HCN that w — Equilibrium Chemistry Question

Silver ion forms the complex Ag(CN)₂– with Kf = 9.8 × 1021. What is the minimum amount of HCN that would need to be added to 1.00 L of a suspension of 0.010 mol AgCl in order to dissolve all the solid? The Ksp of AgCl is 1.8 × 10-10 and the Ka of HCN is 6.2 × 10-10.