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Cell diagrams - how to draw them

by jsmith613
Tags: cell, diagrams, draw
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jsmith613
#1
May9-12, 04:08 PM
P: 614
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

The answer given is C.
But this includes VO2+ which is not in the initial eqn on the RHS?
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Borek
#2
May9-12, 05:08 PM
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Try to split the reaction into half reactions.
jsmith613
#3
May10-12, 01:36 AM
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Quote Quote by borek View Post
try to split the reaction into half reactions.
V3+ + H2O = VO2+ + 2H+
VO2+ + H2o = VO2+ + 2h+

Borek
#4
May10-12, 01:42 AM
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Cell diagrams - how to draw them

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

Do you see why C?
jsmith613
#5
May10-12, 02:38 AM
P: 614
Quote Quote by Borek View Post
They are not balanced yet (you ignored electrons), but you are on the right track.

Do you see why C?
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?
Borek
#6
May10-12, 03:03 AM
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Quote Quote by jsmith613 View Post
I think you are supposed to put the stronger reducing agent on the left side?
Isn't it what they did?
jsmith613
#7
May10-12, 03:09 AM
P: 614
Quote Quote by Borek View Post
Isn't it what they did?
...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 :)


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