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Chemistry
The unit in which the solubility product of barium phosphate is expressed as
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Q. The unit in which the solubility product of barium phosphate is expressed as
AIIMS
AIIMS 2000
Equilibrium
A
$mol^{2} \, dm ^{-6}$
29%
B
$mol^3\, dm^{-9}$
24%
C
$mol^4\, dm^{-12}$
12%
D
$mol^5\, dm^{-15}$
35%
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 (PO
4
)
2
be s mol dm
-3
$\Rightarrow $ Solubility product = (Ba
2+
)
3
(PO
4
-3
)
2
s
5
= mol
5
dm
-15