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Zn salt is mixed with (NH4)2S of molarit...

Zn salt is mixed with `(NH_4)_2S of molarity 0.021 M Calculate the amount `ZN^(2+)` remains unprecipitated in 12 ml of this solution.

A

`1.677xx10^(-22)` g

B

`1.767xx10^(-22)` g

C

`2.01xx10^(-23)` g

D

None of these

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The correct Answer is:
A
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