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Need help with half reactions and cell potentials
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Topic: Need help with half reactions and cell potentials (Read 11445 times)
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plaito_999
New Member
Posts: 4
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Re: Need help with half reactions and cell potentials
«
Reply #15 on:
May 31, 2010, 09:35:02 AM »
Borek, when you say reverse the reaction do you mean reverse it to this 2 Cr
3+
+ 3H
2
O
2
+ 10 OH
-
2CrO
4
2-
+ 8H
2
O
Also, thank you so much to everyone who has helped, I really appreciate it.
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Borek
Mr. pH
Administrator
Deity Member
Posts: 27665
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I am known to be occasionally wrong.
Re: Need help with half reactions and cell potentials
«
Reply #16 on:
May 31, 2010, 09:37:24 AM »
Quote from: plaito_999 on May 31, 2010, 09:35:02 AM
2 Cr
3+
+ 3H
2
O
2
+ 10 OH
-
2CrO
4
2-
+ 8H
2
O
Cr(OH)
3
, but in general yes, that's what I meant - exchange lhs with rhs.
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ChemBuddy
chemical calculators - stoichiometry, pH, concentration, buffer preparation,
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vickium
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Re: Need help with half reactions and cell potentials
«
Reply #17 on:
May 31, 2010, 01:10:11 PM »
Borek, so then the final answer is ... 3H
2
O
2
+ 2Cr(OH)
3
+ 4OH
-
8H
2
O + 2CrO
4
2-
?
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Need help with half reactions and cell potentials