The Ksp for PbF2 is 7.1 x 10 to the(-7). The Kb for the F- anion is 1.4 x 10 to the(-11). A student weighs out 2.5 g of PbF2, places it into 100mL of deionized water and stirs.

a) Will there be any solid PbF2, left in the flask?
b) What is the pH of the solution?