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October 21, 2014

October 21, 2014

Posted by **Keith** on Saturday, May 12, 2007 at 4:01pm.

Are you saying that the table values in your book are listed as oxidations (Fe==> Fe^+2+ 2e is an oxidation) or is the equation you show in the problem as an oxidation and the table values in the book are reduction values.

I just made up an equation on the spot to show that the equations in the book are the opposite of what I want. The table values are reduction.

OK. If the table values are all reductions then you make the decision by the rule as the reactions occur in the table. That rule is to tell you which equation is to be reversed and the sign changed. Then you make the reversal, change the sign, and add the E*ox + E*red for Ecell.

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