## Finding E

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

Posts: 58
Joined: Fri Sep 29, 2017 7:04 am

### Finding E

Are there instances when you can only use cathode-anode or any when you can only flip the value? Or can we always use either?

Jessica Jones 2B
Posts: 80
Joined: Fri Sep 29, 2017 7:04 am

### Re: Finding E

You should be able to use either. As long as you identify the anode and cathode correctly

Ivy Lu 1C
Posts: 54
Joined: Thu Jul 27, 2017 3:00 am

### Re: Finding E

You can use either method of solving for E, but just make sure you stay consistent and don't combine the two. If you use cathode-anode, then don't flip the sign of the E for the anode.

Christy Zhao 1H
Posts: 50
Joined: Fri Sep 29, 2017 7:07 am

### Re: Finding E

If you flip the sign, use Ecell=Eanode+Ecathode. If you don't flip the sign, use Ecell= Ecathode-Eanode.