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Redox titration
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Topic: Redox titration (Read 2815 times)
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freeze0912
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Redox titration
«
on:
October 18, 2008, 10:17:59 AM »
I want to ask about redox titration of KMnO
4
and H
2
C
2
O
4
When KMnO
4
is added in H
2
C
2
O
4
There is an obersevration that brown colour solution is given out
If it is because of the complex of Potassium oxalate?
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Borek
Mr. pH
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I am known to be occasionally wrong.
Re: Redox titration
«
Reply #1 on:
October 18, 2008, 11:30:56 AM »
You don't start with brown - you start with purple.
This titration requires low pH, thus you should add sulfuric acid.
Permanganate gets reduced to Mn
2+
, oxalate gets oxidized to carbon dioxide.
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ChemBuddy
chemical calculators - stoichiometry, pH, concentration, buffer preparation,
titrations.info
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Redox titration