Name:_________________

Section:_______________

1) Write the balanced solubility equilibrium reaction between PbF2 solid and its ions in solution.
Be sure to label the phases.

2) Write the expression of solubility product constant (Ksp) for PbF2.

3) Given Ksp = 3.6 x 10 -8 for PbF2 at 25C, estimate the concentration of Pb2+ and F-
in equilibrium with solid PbF2 at 25C.

4) What is the biggest source of error in this experiment?
How can you minimize the error caused by this source ?