1.

Concentration of the Ag^+ ion in a saturated solution of Ag_2C_2O_4 is 2.24 times 10^-4 mol L^-1 solubility product of Ag_2C_2O_4 is

Answer»

`2.42 TIMES 10^-8 MOL^3 L^-3`
`2.66 times 10^-12 mol^3 L^-3`
`4.5 times 10^-11 mol^3 L^-3`
`5.619 times 10^-12 mol^3 L^-3`

Solution :`5.619 times 10^-12 mol^3 L^-3`
`Ag_2C_2O_4leftrightarrow2Ag^++C_2O_4^(2-)`
`[C_2O_4^(2-)]=(2.24 times 10^-4)/2MOL L^-1`
`=1.12 times 10^-4 mol L^-1`
`K_(SP)=[Ag^+]^2[C_2O_4^(2-)]`
`=(2.24 times 10^-4 mol L^-1)^2 (1.12 times 10^-4 mol L^-1)`
`=5.619 times 10^-12 mol^3 L^-3`


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