A `Tl^+ // Tl` : couple was prepared by saturating 0.1 M KBr with `T lBr` and allowing the `Tl^+` from the telatively in

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Q 2622178031.     A `Tl^+ // Tl` : couple was prepared by saturating 0.1 M KBr with `T lBr` and allowing the `Tl^+` from the telatively insoluble bromide to equilibrate. This couple was observed to have a potential of -0.443 V with respect to `Pb^(2+ )/Pb` couple in which `Pb^(2+)` was 0.1 M. What is `K_(sp)` of `TlBr`.

(Report answer in multiplication of `10^-8`)` \ \ \ \ ( E_(pb^(2+)//Pb)^o = -0.126, E_(Tl^+//Tl) = -0.336 V)`

(take antilog (0.5509) `= 3.55, (2.303 RT)/F = 0.059`)

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