## Cell Diagram

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

Alina_Mitchell_2C
Posts: 13
Joined: Wed Sep 21, 2016 2:55 pm

### Cell Diagram

Why would the cell diagram for the redox reaction: 2Ag(s) + Br2 --> 2AgBr(s) have the cell diagram
Ag(s)|AgBr(s)||Br-|Br2|Pt?
Why are both AgBr and Br- included?

Ara Yazaryan 1E
Posts: 44
Joined: Wed Sep 21, 2016 2:59 pm

### Re: Cell Diagram

AgBr is being oxidized from 0 to +1, and subsequently Br- is being reduced from -1 to 0. This makes AgBr the anode and Br- the cathode, this is why they are included.

204932558
Posts: 23
Joined: Fri Sep 29, 2017 7:05 am

### Re: Cell Diagram

Because silver loses an electron and becomes oxidized and bromine gains an electron and becomes reduced. They both need to be included in the cell expression.

Annalise Eder 2L
Posts: 49
Joined: Sat Jul 22, 2017 3:01 am

### Re: Cell Diagram

Don't forget to include phases for all of the elements. The Br ions would be (aq).