[LHM]

The following cell reaction furnishes 0.62V.

2 Fe³⁺(aq) + Sn²⁺(aq) 2 Fe²⁺(aq) + Sn⁴⁺(aq)

What is the maximum electrical energy per mole of Fe(III) ion?

I got 5.98*10⁴ J/mole Fe(III) ion: 0.62 J/C * 96485 C/mole e^- * 2 mole e^-/2mole Fe(III) ion. The answer's supposed to be 5.98*10⁵ J/mole Fe(III) ion though, was I supposed to multiply by 10 somewhere?

[Schrödinger]

Your answer seems to be correct to me.. I have no idea why the answer is actually multiplied by a factor of 10. Probably the answer given in the book is incorrect