Question

Write the expression for solubility product of calcium phosphate in terms of its molar solubility, S.

Answer 1

`{:(Ca_(3)(PO_(4))_(2) ,hArr,3 Ca^(2+),+,2PO_(4)^(3-),,),(S,,3S,,2S,,):} K_(sp)=(3S)^(2)(2S)^(3)=72S^(5)`