Question

At a certain temperature, the solubility of the salt `A_(x)B_(y)` is S moles per litre. The general expression for the solubility product will be
A. `K_(sp)=X^(y)Y^(x)S^(x+y)`
B. `K_(sp)=(XY)^(x+y)S^(x+y)`
C. `K_(sp)=(X^(x)Y^(y))S^(x+y)`
D. `K_(sp)=X^(y)Y^(x)S^(xy)`

Answer 1

Correct Answer - C
`A_(x)B_(y)(s)hArr xA^(y+)(aq.)+yB^(x-)(aq.)`
`K_(ap)=C_(A^(y+))^(x)C_(B^(x-))^(y)`
`= (xS)^(x)(yS)^(y)`
`= (x^(x)S^(x))(y^(y)S^(y))`
`x^(x)y^(y)S^(x+y)`