February 26, 2017

Homework Help: chemistry

Posted by Hannah on Monday, March 30, 2009 at 9:34pm.

For the reaction that occurs in the voltaic cell,

Fe(s)|Fe2+(aq)||Cr3+(aq), Cr2+(aq)|Pt(s)

determine E°cell.

I don't understand how the Pt(s) would be used to solve this question.

Please help!

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