The standard reduction for the following reactions are : `Fe^(3+) + 3e^(-) rarr Fe` with `E^(@) = - 0.036 V` `Fe^(2+) + 2e^(-) rarr Fe` with `E^(@) = - 0.44 V` What would be the standard electrode potential for the reaction `Fe^(3+) + e^(-) rarr Fe^(2+)` ?A. 0.772 VB. 0.077 VC. `-0.404 V`D. `0.772 V`

The standard reduction for the following reactions are : `Fe^(3+) + 3e

1.	The standard reduction for the following reactions are : `Fe^(3+) + 3e^(-) rarr Fe` with `E^(@) = - 0.036 V` `Fe^(2+) + 2e^(-) rarr Fe` with `E^(@) = - 0.44 V` What would be the standard electrode potential for the reaction `Fe^(3+) + e^(-) rarr Fe^(2+)` ?A. 0.772 VB. 0.077 VC. `-0.404 V`D. `0.772 V`
Answer» Correct Answer - A `{:(Fe^(3+)+3e^(-) rarr Fe,E_(1)^(@)=-0.036 V" "(n_(1)=3)),(Fe" "rarr Fe^(2+)+2e^(-),E_(2)^(@)=+0.44 V" "(n_(2)=2)),(bar(Fe^(3+)+e^(-) rarr Fe^(2+)" "),E_(3)^(@)=?" "(n_(3)=1)):}` `n_(3)E_(3)^(@)=n_(1)E_(1)^(@)+n_(2)E_(2)^(@)` `1xxE_(3)^(@)=3(-0.036)+2(+0.44)` `E_(3)^(@)=0.772 V`

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