The molar solubility of AgCl in 6.5 × 10−3 M AgNO3 is 2.5 × 10−8 M. In deriving Ksp from these data, which of the following assumptions is (are) reasonable? a) Ksp is the same as solubility. b) The molar solubility of AgCl is the same in 6.5 × 10−8 M AgNO3 as in pure water. c) Solubility of AgCl is independent of the concentration of AgNO3. d) [Ag+] does not change significantly upon addition of AgCl to 6.5 × 10−3 M AgNO3. e) [Ag+] after the addition of AgCl to 6.5 × 10−3 M AgNO3 is the same as it would be in pure water.