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The solubility product of a salt having ...

The solubility product of a salt having general formula `MX_(2)` in water is `4xx10^(-12)`. The concentration of `M^(2+) ions` in the aqueous solution of the salt is:

A

`2.0xx10^(-6)M`

B

`1.0xx10^(-4)M`

C

`1.6xx10^(-4)M`

D

`4.0xx10^(-10)M`

Text Solution

Verified by Experts

The correct Answer is:
B
`MX_(2)hArrunderset(S)(M^(2+))+underset(2S)(2X^(-))`
`K_(sp)=(2S)^(2)(S)=4S^(3)`
`impliesS=root3((K_(sp))/(4))=root3((4xx10^(-12))/(4))=1.0xx10^(-4)M`
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