1.

The solubility product of a salt having general formula MX_(2) in water is 4xx10^(-12). The concentration of M^(2+) ions in the aqueous solution of the salt is:

Answer»

`2.0 XX 10^(-6) M`
`1.0 xx 10^(-4) M`
`1.6 xx 10^(-4) M`
`4.0 xx 10^(-10) M`

SOLUTION :`{:(MX_(2)HARR,M^(2+),+,2X^(-)),(,S,,2S):}`
`RARR S = 3sqrt((K_(sp))/(4)) = 3sqrt((4 xx 10^(-12))/(4)) = 1.0 xx 10^(-4) M`.


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