CHM 2046C Module 12 Name: ______ Sample _____

Part L. Common Ion Effect on Solubility 10 points

What is the solubility, in milligrams per milliliter, of BaCO₃, K_sp =1.2 x 10 ^-10, in

(a) pure water and

(b) in water containing 10.0 mg/ml of Na₂CO₃?

(c) What is the pH of the solution? K_a2HCO3 = 4.8 x 10 ^-11