[adc626]

I have absolutely no clue as to how to attack this. D: Help?

A solution is prepared by mixing 50.0 mL of 0.11 M Pb(NO3)2 with 50.0 mL of 1.1 M KCl. Calculate the concentrations of Pb2+ and Cl2 at equilibrium. Ksp for PbCl2(s) is 1.6e-5.

Also, how do I calculate solubility of CdCO3, Ksp = 5.e-12? I've tried taking the square root, giving me 2.0e-6, but this is wrong. CdCO3 --> Cd+ + CO3-, no? What am I doing wrong?

Nevermind, got it!