Duh. Simple process.. Ksp = [Ca][F]^2 [Ca] = x = [F] / 2 So, 3.8 x 10^-11 = x^3 / 4. Solve for x. This will give you the M of the solution and, assuming 1L, the number of moles of CaF2 that can dissolve. Multiply by the molar mass of CaF2 to...
