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The solubility product of barium sulphat...

The solubility product of barium sulphate is `1.5 xx 10^(-9)` at `18^(@)C` . Its solubility in water at `18^(@)C` is

A

`1.5 xx 10^(-9) M`

B

`1.5 xx 10^(-5) M`

C

`3.87 xx 10^(-9) M `

D

`3.87 xx 10^(-5) M`

Text Solution

Verified by Experts

The correct Answer is:
4
Let the solubility of `BaSO_(4) ` be x M .
`:. [Ba^(2+)] = x M, [SO_(4)^(2-)] = x M`
` x^(2) = 1.5 xx 10^(-9) , x = sqrt(1.5 xx 10^(-9)) = 3.87 xx 10^(-5) M `
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