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Calculate The ratio of [Ag(S(2)O(3))(2...

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The ratio of `[Ag(S_(2)O_(3))_(2)]^(3-)and[Ag^(+)]` in 0.1 M `S_(2)O_(3)^(2-)` solution. Given that the stability / formation constants `(K_(f))` for `[Ag(NH_(3))_(2)]^(2+)and[Ag(S_(2)O_(3))_(2)]^(3-)` are `1.7xx10^(7)and1.0xx10^(13)` respectively.

Text Solution

Verified by Experts

The equilibrium set up is
`Ag^(+)+2s_(2)O_(3)^(2-)overset(K_(f))()[Ag(S_(2)O_(3))_(2)]^(3-)`
`therefore` Stability constant,
`K_(f)=([Ag(S_(2)O_(3))_(2)]^(3-))/([Ag^(+)][S_(2)O_(3)^(2-)]^(2))=1.0xx10^(13)` (given)
`therefore([Ag(S_(2)O_(3))_(2)]^(3-))/([Ag^(+)])=1.0xx10^(13)xx[S_(2)O_(3)^(2-)]^(2)`
`=1.0xx10^(13)xx(0.1)^(2)`
`=1xx10^(11)`
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