1.

Solubility product of a salt AB is 1xx10^(-8)M^(2) in a solution in which the concentration of A^(+) ions is 10^(-3)M. The salt will precipitate when the concentration of B^(-) ions is kept

Answer»

`10^(-4)M`
`10^(-7)M`
`10^(-6)M`
`10^(-5)M`

SOLUTION :`[A^(+)][B^(-)]=K[AB]=K_(sp)`
`[10^(-3)][B^(-)]=10^(-8)`
Hence, the salt will precipitate when the conc. Of B becomes more than `10^(-5)` M.


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