First slide

Solubility product(KSP)

Question

The solubility product of a sparingly soluble salt AB at room temperature is $1.21 \times 10^{- 6}$ , its molar solubility is

Moderate

A

$1.21 \times 10^{- 6} M$
B

$1.1 \times 10^{- 4} M$
C

$1.1 \times 10^{- 3} M$
D

None of these

Solution

. $AB ⇌ A + B$ ; $K_{SP} = S^{2}$
$S = \sqrt{K_{sp}} = \sqrt{1.21 \times 10^{- 6}} = 1.1 \times 10^{- 3} M$

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