calculate the molar solubility of FeCO3. How many grams of FeCO3 are present in 15 L of a saturated FeCO3 solution ?

Answer 1

FeCO3 ==> Fe^2+ + CO3^2-
...x.......x.......x
Ksp = (Fe^2+)(CO3^2-)
Substitute and solve for x. Units are mols/L; then mol/L x 15 L = total mols and
grams/molar mass converts to grams.