ElectrochemistryEasy
Question
Consider the following Eo values
EoFe3+/Fe2+ = 0.77 V
EoSn2+/Sn = - 0.14 V
Under standard conditions the potential for the reaction
Sn(s) + 2Fe3+(aq) → 2Fe2+(aq) + Sn2+(aq) is
EoFe3+/Fe2+ = 0.77 V
EoSn2+/Sn = - 0.14 V
Under standard conditions the potential for the reaction
Sn(s) + 2Fe3+(aq) → 2Fe2+(aq) + Sn2+(aq) is
Options
A.1.68 V
B.0.63 V
C.0.91 V
D.1.40 V
Solution
Ecell - EoRHS - EoLHS
= (0.77) - (-0.14)
= 0.91 V
= (0.77) - (-0.14)
= 0.91 V
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