6.5 g of thallous chloride, TlCl, is added to 750 mL of water at room temperature to determine Ksp. The
solution is stirred from time to time, for a 4 h period. Some thallous chloride does not dissolve, and the
solution is declared saturated. A 400 mL sample of the solution is decanted off and evaporated to dryness.
The weight of thallous chloride that remains is 1.20 g.
a) What is the solubility of thallous chloride?
b) What is Ksp for thallous sulfate?
