Concentration of the `Ag^+` ions in a saturated solution of
`Ag_2C_2O_4` is `2.2xx10^(-4)mol.L^(-1)`. Solubility product of `AG_2C_2O_4` is

Options

A. `2.66xx10^(-12)`
B. `4.5xx10^(-11)`
C. `5.3xx10^(-12)`
D. `2.42xx10^(-8)`

Explanation

`Ag_2C_2O_4(s) `K_(sp)=[Ag^+][Cr_2O_4^(2-)]`
`[Ag^+]=2.2xx10^(-4)mol*L^(-1)`
`[Cr_2O_4^(2-)]=1/2[Ag^+]=1.1xx10^(-4)mol*L^(-1)`
`K_(sp_=(2.2xx10^(-4))^2(1.1xx10^(-4))=5.3xx10^(-12)`