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What is [Ag^(+) ] in a solution made by...

What is `[Ag^(+) ]` in a solution made by dissolving both `Ag_2 CrO_4 and Ag_2C_2O_4` until saturation is reached with respect to both salts ? ` [K_(sp) (Ag_2C_2O_4) =2xx 10 ^(-11) , K_(sp) (Ag_2CrO_4) - 2xx10 ^(-12))]`

A

`2.80xx10^(-4)`

B

`7.6xx10^(-5)`

C

`6.63xx10^(-6)`

D

`3.52xx10^(-4)`

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