Question

calculate the solubility product of leadchloride in pure water.your answer should be in units of molarity raised to the appropriate exponent.

Answer 1

You need the solubility of PbCl2.

...........PbCl2 --> Pb^2+ + 2Cl^-
.......... solid......x......2x
Ksp = (Pb^+)(Cl^-)2
Ksp = (x)(2x)^2
where x = solubility.
Substitute for x when you have the solubility (in mols/L) and calculate Ksp.