1.

At 20^(@)C, the Ag^(+) ion concentation in a saturated solution of Ag_(2)CrO_(4) is 1.5 xx 10^(-4) mole/litre. At 20^(@)C, the solubility product of Ag_(2)CrO_(4) would be

Answer»

`3.3750 xx 10^(-12)`
`1.6875 xx 10^(-10)`
`1.6875 xx 10^(-12)`
`1.6875 xx 10^(-11)`

Solution :`{:(AgCrO_(4),hArr,2Ag^(+),+,CrO_(4)^(-)),(,,(2S)^(2),S):}`
`K_(sp) = 4S^(3)` given `2S = 1.5 xx 10^(-4)`
`:. K_(sp) = (2S)^(2) xx S`
`= (1.5 xx 10^(-4))^(2) xx ((1.5 xx 10^(-4))/(2)) = 1.6875 xx 10^(-12)`


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