1.

Thecell, Zn|Zn^(2+)(1M)||Cu^(2+)(1M) |Cu (E_("cell")^(@)=1.10V) was allowed to be completely discharged at 298 K. Therelative concentration of Zn^(2+) to Cu^(2+)(([Zn^(2+)])/([Cu^(2+)])) is

Answer»

`9.65 xx10^(4)`
antilog `(24.08)`
`37.3`
`10^(37.3)`

SOLUTION :`E_(CELL)=0,` when cell is completely discharged.
`E_(cell) =E_(cell)^(@)-(0.059)/(2) log ""([(ZN^(2+))/(Cu^(2+))])/([Cu^(2+)])`
or `0=1.1-(0.059)/(2)log ""(([Zn ^(2+)])/([Cu^(2+)]))`
`log ""(([Zn^(2+)])/([Cu^(2+)]))=(2xx 1.1)/(0.059)=37.3`
`therefore (([Zn^(2+)])/([Cu^(2+)]))=10^(37.3)`


Discussion

No Comment Found

Related InterviewSolutions