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Topic: Calculating Reduction Potentials  (Read 1485 times)

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Offline CKabes

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Calculating Reduction Potentials
« on: March 31, 2013, 01:18:35 PM »
If two reactions are given:

Co3+ + e-  :rarrow: Co2+   E°= 1.82 V
Co2+ + 2e-  :rarrow: Co     E°= -.28 V

How do you find the E° value of this reaction:

Co3+ + 3e-  :rarrow: Co

The answer is .42 V. I thought I could just add the potentials, but that doesn't work...
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Offline Corribus

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Re: Calculating Reduction Potentials
« Reply #1 on: March 31, 2013, 03:49:47 PM »
We just had this same question literally yesterday.

http://www.chemicalforums.com/index.php?topic=67075.0
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What men are poets who can speak of Jupiter if he were like a man, but if he is an immense spinning sphere of methane and ammonia must be silent?  - Richard P. Feynman
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