Give expression for the solubility product of the following : `(i) BaSO_(4)`, `(ii) H_(2)S`, `(iii) Sb_(2)S_(3)`, `(iv) AII_(3)`.

Explanation

`(i) BaSO_(4)(S)hArrBa^(2+)(aq)+SO_(4)^(-2)(aq)`
`K_(s)=[Ba^(+2)][SO_(4)^(-2)]`
`(ii) H_(2)ShArr2H^(+)+S^(-2)`
`K_(s)=[H^(+)]^(2)[S^(-2)]`
`(iii) Sb_(2)S_(3)hArr2Sb^(3+)+3S^(-2)`
`K_(s)=[Sb^(3+]^(2)[S^(-2)]^(3)`
`(iv) Al I_(3)hArrAl^(3+)+3I^(-)`
`K_(s)=[Al^(3+)][I^(-)]^(3)`