Gibbs free energy and balancing redox reactions

[Hannah_1G]

Should we check and balance each redox half reaction before trying to calculate gibbs free energy? For example 6L.1: 2 Ce⁴⁺ (aq) + 3 I^- (aq) 2Ce³⁺ (aq) + I₃^- (aq), E cell ° = +1.08 V. Before calculating gibbs, would I need to balance the reaction?

[asannajust_1J]

Yes, you must balance each half reaction to determine n, the number of electrons transferred in the reaction.

[Veronica_Lubera_2A]

Yes so you would find the half reactions and balance them to find the least common multiple of their transferred electrons in the final equation. (Usually it's 1 or 2 in the electrons transferred.)