Calculate the equilibrium concentration of all ions in an ideal solution prepared by mixing `25.00mL` of `0.100M TI^(+)` with `25.00 mL` of `0.200M Co^(3+)`
`E^(@) (TI^(+)//TI^(3+)) =- 1.25 V, E^(@) (Co^(3+)//Co^(2+)) = 1.84V`

Answer

`[Tl^(+)]=10^(-8)M;[Co^(3+)]=2xx10^(-8)M,[Tl^(+3)]=0.05M;[Co^(2+)]=0.1M`

Explanation

`Tl^(+)toTl^(3+)+2e^(-)`
`underline(2Co^(3+)+2e^(-)to2Co^(2+))`
`underline(Tl^(+)+2Co^(3+)toTl^(3+)+2Co^(2+)), " "E^(@)=-1.25+1.84=0.59"volt"`
`{:(2.5,,5,,0,,0),(x,,2x,,2.5,,5):}`
`=0=0.59-(0.059)/(2)log((2.5xx5^(2))/("x"xx(2x)^(2))`
`(2.5xx(5)^(2))/(4x^(3))=10^(20)`
`[Tl^(+)]=10^(-8)M,[Co^(3+)]=2xx10^(-8)M`