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Write the relationship between K_(sp) and S of an A_(2)B type of salt. |
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Answer» Solution :Consider an electrolyte `A_(2)B`, WHOSE SOLUBILITY is S MOL `DM^(-3)`. In a saturated solution, `A_(2)B_((s))hArr2A^(+)+B^(2-)` `therefore[A^(+)]=2S" mol "dm^(-3)and(B^(2-))=S" mol "dm^(-3)` `K_(sp)=[A^(+)]^(2)[B^(2-)]=(2S)^(2).S=4S^(3)` `thereforeK_(sp)=4S^(3)` |
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