Ksp of AgCl is 1×10-10 . Its solubility in 0.1 M KNO3 will be:

AgCl→Ag+ + Cl-Ksp =S2 =10-10S = 10-5KNO3 → K++ NO3-There are no common ions the addition of KNO3 has no effect over solubility of AgCl so solubility =10-5