[aznboi855]

1. Calculate the silver ion concentration in a saturated solution of silver(I) carbonate(Ksp = 8.1 x 10^-12)

2. Calculate the minimum concentration of Mg^2+ that must be added to 0.10 M NaF in order to initiate a precipitate of magnesium fluoride (For MgF2, Ksp = 6.9 x 10^-9)

[gregdwulet]

Reading this would be a good start:

http://www.chemicalforums.com/index.php?topic=32966.0