# Homework Help: Cell diagrams - how to draw them

1. May 9, 2012

### jsmith613

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

I always thought you put the electrolyte of one half cell on one side and the other electrolyte on the other side

But this includes VO2+ which is not in the initial eqn on the RHS?

Last edited: May 9, 2012
2. May 9, 2012

### Staff: Mentor

Try to split the reaction into half reactions.

3. May 10, 2012

### jsmith613

V3+ + H2O = VO2+ + 2H+
VO2+ + H2o = VO2+ + 2h+

4. May 10, 2012

### Staff: Mentor

They are not balanced yet (you ignored electrons), but you are on the right track.

Do you see why C?

5. May 10, 2012

### jsmith613

Well V3+ is oxidised (reducing agent) and VO2+ is reduced (oxidising agent).
I think you are supposed to put the stronger reducing agent on the left side?

6. May 10, 2012

### Staff: Mentor

Isn't it what they did?

7. May 10, 2012

### jsmith613

...of course....I think I just get confused between VO2+ and VO2+.

...I guess though this will help me in exams as I will be more aware of what is going on....thanks for helping me :)