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Determine the potential for the cell : Pt|Fe^(2), Fe^(3+)||Cr_(2)O_(7)^(2-), Cr^(3+), H^(+)|Pt in which [Fe^(2+)] and [Fe^(3+)] are 0.5 M and 0.75 M respectively and [Cr_(2)O_(7)^(2-)], [Cr^(3+)] and [H^(+)] are 2M, 4 M and 1M respectively. Given : {:(Fe^(3+)+e^(-) rarr Fe^(2+),,E^(@)=0.770"volt"),(14H^(+)+6e^(-)+Cr_(2)O_(7)^(2-) rarr 2Cr^(3+)+7H_(2)O,,E^(@)=1.35" volt"):} |
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