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Calculate the equilibrium costant log (...

Calculate the equilibrium costant log `(K_(c))` for the reaction
`Zn(s)+Cu^(2+)(aq)rarrZn^(2+)(aq)+Cu(s)`
[Given `E_(cell)^(2)=1.1 V`]

A

`1.98xx10^(37)`

B

`2.98xx10^(36)`

C

`1.68xx10^(37)`

D

`2.68xx10^(36)`

Text Solution

Verified by Experts

The correct Answer is:
C
`Zn(s) +Cu^(2+) (aq) rarr Zn^(2+) (aq)+Cu(s)`
`log k_(c )=(E_(cell)^(2)X_(n))/(0.0591)`
`log k_(c )=(1.1 Vxx2)/(0.059 V)=37.225` at 298 k
`rarr k_(c ) =1.68 xx10^(37)` at 298 k
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