In Lab 3, Solubility Rules, students identified ionic salts as soluble or insoluble. The solubility of ionic salts is quantified by an equilibrium constant called Ksp, the solubility product. This Ksp refers to the dissolution reaction of the ionic salts.

(a) Write the dissolution reaction for the ionic solids below. (Use the lowest possible coefficients. Include states-of-matter under the given conditions in your answer.)

1. BiPO4
BiPO4(s) ? Bi3+(aq) + PO43-(aq)
(it’s wrong)
2. ZnCO3
ZnCO3(s) ? Zn2+(aq) + CO32-(aq)
(it’s wrong)
(b) The concentration of cations and anions in solution can be predicted from the equation

[cation] = sp