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Q. The unit in which the solubility product of barium phosphate is expressed as

AIIMSAIIMS 2000Equilibrium

Solution:

Barium phosphate when dissolved in water:
$Ba_{3}\left(PO_{4}\right)_{2} \rightarrow 3Ba^{2+}+2PO_{4}^{3-}$
Let the solubility of Ba 3 (PO4)2 be s mol dm-3
$\Rightarrow $ Solubility product = (Ba2+)3 (PO4-3)2
s5 = mol5 dm-15