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Write the relationship between K(sp) and...

Write the relationship between `K_(sp)` and S of `PbI_(2)`.

Text Solution

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`PbI_(2)` belongs to `AB_(2)` type of salt.
`PbI_(2)hArrPb^(2+)+2I^(-)`
`[Pb^(2+)]=S" mol "dm^(-3)and[I^(-)]=2S" mol "dm^(-3)`
`K_(sp)=[Pb^(2+)][I^(-)]=(S)*(2S)^(2)`
`thereforeK_(sp)=4S^(3)`.
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