Reduction Potentials

[nixon13]

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When adding reductions potentials, they give you an oxidizing equation and a reduction equation with potentials for both. Do you flip the sign of the oxidation potential when you add the two to get the total?

 

[Hugh Mannity]

If the equation for the oxidation reaction is written as a reduction potential then you reverse it and put the opposite sign on the E value. If it is already written in the oxidized form, then leave it.

 

[nixon13]

how do you know if its written in the oxidized form?

 

[ak47]

how do you know if its written in the oxidized form?

LEO (Loss of Electrons = oxidation) goes GER (Gain of Electrons = Reducation)
so if the starting molecule loses electrons...there you have it!