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Calculate the standard reduction electro...

Calculate the standard reduction electrode potential of `Cd^(2+)//Cd` electrode for the cell:
`Zn(s)IZn^(2+)(IM)IICd^(2+)(IM)ICd(s)`
(Given that " " `E_(cell)^(@)=0.36 V and E_(Zn^(2+))^(@)//Zn)=-0.76V)`

Text Solution

Verified by Experts

`E_(cell)^(@)=E_(cathode)^(@)-E_(anode)^(@)`
`E_(cell)^(@)=(E_(Cd)^(2))^(2+)//(Cd)^(@)-(E_(Zn^(2+)//Zn)^(@))`
`(E_(Cd^(2))^(2+)//Cd)^(@)=E_(cell)^(@)+E_(Zn^(2+)//Zn)^(@)=0.36+(-0.76)=-0.40 V`
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