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Question
At a certain temperature, the solubility product of MX is 6.4 × 10−5. The solubility of salt in mol L−1 is ____________.
Options
8 × 10−5
8 × 10−2
8 × 10−3
8 × 10−4
MCQ
Fill in the Blanks
Solution
At a certain temperature, the solubility product of MX is 6.4 × 10−5. The solubility of salt in mol L−1 is 8 × 10−3.
Explanation:
For MX,
\[\ce{MX_{(s)} ⇌ M^+_{( aq)} + X^-_{( aq)}}\]
∴ x = 1, y = 1
Ksp = xx yy Sx+y
= (1)1 (1)1 S1+1
= S2
∴ S = `sqrt("K"_"sp") = sqrt(6.4 xx 10^-5)` = 8 × 10−3 mol L−1
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Physical Properties
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