## Balancing reactions

Marc Farah 3D
Posts: 22
Joined: Wed Sep 21, 2016 2:59 pm

### Balancing reactions

When we balance half reactions, and double the reaction, why do we not double the E(not)? Why is it kept constant but when flipped it, we must change the E to negative?

Brianna Wummer 2L
Posts: 19
Joined: Wed Sep 21, 2016 2:56 pm

### Re: Balancing reactions

Hi there! It isn't necessary to double the E(not) because E(not) is a fixed value. It does not depend on the the moles or the numbers of times the reaction occurs or anything. Hope that helps!

Tiffany_Luu_1F
Posts: 10
Joined: Wed Sep 21, 2016 2:58 pm

### Re: Balancing reactions

E is an intensive property so the amount does not matter.

Veronica_Giap_1C
Posts: 13
Joined: Wed Sep 21, 2016 2:58 pm

### Re: Balancing reactions

Can you/someone elaborate and explain the relation of the reaction being intensive applies to the number of moles reacting?

Emily Wang 1H
Posts: 26
Joined: Sat Jul 09, 2016 3:00 am
Been upvoted: 1 time

### Re: Balancing reactions

E(nought) of the entire cell is the standard reduction potential, which is the difference between the two E values of each half reaction, so if you're multiplying by a number when the moles increase, the difference is still the same.