Consider the following cell reaction: `Fe_((s))+O_(2(g))+4H_((aq))^(+)to2Fe_((aq))^(2+)+2H_(2)O_((l))` `E^(@)=1.67V` `At[Fe^(2+)]=10^(-3)M,P_((O_(2)))^(0)=0.1atm and pH=3,` the cell potential at `25^(@)C` isA. 1.47VB. 1.77VC. 1.87VD. 1.57V

Consider the following cell reaction: `Fe_((s))+O_(2(g))+4H_((aq))^(+)

1.	Consider the following cell reaction: `Fe_((s))+O_(2(g))+4H_((aq))^(+)to2Fe_((aq))^(2+)+2H_(2)O_((l))` `E^(@)=1.67V` `At[Fe^(2+)]=10^(-3)M,P_((O_(2)))^(0)=0.1atm and pH=3,` the cell potential at `25^(@)C` isA. 1.47VB. 1.77VC. 1.87VD. 1.57V
Answer» Correct Answer - D `E=E^(o)-(0.059)/(4)"log"([Fe^(2+)]^(2))/([H^(+)]^(4)P_(O_(2)))` `=1.67-(0.06)/(4)"log"((10^(-3))^(2))/((10^(-3))^(4)xx0.1)=1.67-(0.03)/(2)"log"10^(7)` `=1.67-(0.03)/(2)xx7=1.67-0.105=1.565=1.57V`

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Consider the following cell reaction: `Fe_((s))+O_(2(g))+4H_((aq))^(+)to2Fe_((aq))^(2+)+2H_(2)O_((l))` `E^(@)=1.67V` `At[Fe^(2+)]=10^(-3)M,P_((O_(2)))^(0)=0.1atm and pH=3,` the cell potential at `25^(@)C` isA. 1.47VB. 1.77VC. 1.87VD. 1.57V

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