Answer: (1)
Consider a reaction
AgCl(s) → Ag+(aq) + Cl–(aq)
KSP = [Ag+][Cl–]/[AgCl]
KSP = s2 = 1×10-10
s = 10-5
KNO3 →K++NO3−
Since there is no common ions in the addition of nitric acid. Therefore it has no effect on the overall solubility of the AgCl.
∴ Solubility = 10-5