## how to calculate n correctly

$\Delta G^{\circ} = -nFE_{cell}^{\circ}$

Jake_Susi_2J
Posts: 13
Joined: Sat Jul 09, 2016 3:00 am

### how to calculate n correctly

I know that n in the equation deltaG^o=-nFE^o represents the number of moles of electrons transferred but was still confused on how to go about finding said number. Is there a specific calculation to find it or is it simply counting the number of electrons being transferred from one side to the other?

Alexandra_Shambayate_2L
Posts: 14
Joined: Wed Sep 21, 2016 2:57 pm

### Re: how to calculate n correctly

The number of electrons that you account for are the equal number of electrons transferring within each of the oxidation and reduction half reaction equations.

Deanna_Nguyen_3L
Posts: 10
Joined: Fri Jul 22, 2016 3:00 am

### Re: how to calculate n correctly

You can also balance the reactions by using the oxidation and reduction half reactions. Find the number of electrons that are cancelled out and that will be n.

Katherine_Zhuo_3B
Posts: 23
Joined: Wed Sep 21, 2016 2:57 pm

### Re: how to calculate n correctly

For n, the moles of e-, does it have a unit, or is it just the number. For example, in deltaG=-nFE, if F is C/mol and E is J/C, is the n units mol so that delta G is J or is does the n have no units so that delta G =J/mol?

Chem_Mod
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### Re: how to calculate n correctly

n is in moles so delta G is in J