## Question 4 2013 Practice Final

$E_{cell} = E_{cell}^{\circ}-\frac{RT}{nF}\ln Q$

Armani Dodson 1A
Posts: 24
Joined: Fri Jul 22, 2016 3:00 am

### Question 4 2013 Practice Final

How do they get n=4 for #4 on the 2013 practice final??

Shushanna S 3F
Posts: 24
Joined: Sat Jul 09, 2016 3:00 am

### Re: Question 4 2013 Practice Final

The iron goes from an oxidation state of 0 to +2 (and the oxygen goes from 0 to -2). And since there are two moles of iron and oxygen, 2*2electrons=4 electrons. Hope that helps!

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