What is the molar solubility (s) of Ba3(PO4)2 in terms of Ksp?
s = [Ksp/27]1/
s = Ksp1/2
s = [Ksp/108]1/5
s = Ksp1/5
Ba3(PO4)2 = 3Ba2+ + 2PO42-
or, Ksp = (3S)3 . (2S)2
The molar solubility (molL−1) of a sparingly soluble salt MX4 is ′S′. The corresponding solubility product is KSP . ′S′ is given in terms of KSP by the relation