$F{e^{ + 2 }} + 2{e^ - }\, \to \,Fe\,;\,\,\,\,{E^o} = - 0.440\,V$
$F{e^{ + 3 }} + 3{e^ - }\, \to \,Fe\,;\,\,\,\,{E^o} = - 0.036\,V$The standard electrode potential $({E^o})$ for$F{e^{ + 3 }} + {e^ - } \to \,F{e^{ + 2 }}$ is .............. $\mathrm{V}$
$F{e^{2 + }} + 2{e^ - } \to Fe$ …..$(i)$
$\Delta {G^o} = - 2 \times F \times ( - 0.440\,V) = 0.880\,F$
$F{e^{3 + }} + 3{e^ - } \to Fe$ …..$(ii)$
$\Delta {G^o} = - 3 \times F \times ( - 0.036) = 0.108\,F$
On subtracting equation $(i) $ from $(ii)$
$F{e^{3 + }} + {e^ - } \to F{e^{2 + }}$
$\Delta {G^o} = 0.108\,F - 0.880\,F = - 0.772\,F$
${E^o}$ for the reaction $ = - \frac{{\Delta {G^o}}}{{nF}}$ $ = - \frac{{( - \,0.772\,F)}}{{1 \times F}} = + \,0.772\,V$.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$A\xrightarrow[(ii)\;H_3O^+]{(i)\;CH_3MgBr}B\xrightarrow[573\;K]{Cu}2-$methyl $2-$butene
The mass percentage of carbon in $A$ is
