6L. 1b

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605324529
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6L. 1b

Postby 605324529 » Sun Mar 01, 2020 3:08 pm

Calculate the standard reaction Gibbs free energy for the following cell reactions:

(b) 6 Fe(3+) (aq) + 2Cr(+3) (aq) + 7 H2O(l) --> 6 Fe(+2) (aq) + Cr2O7(-2) (aq) + 14H+ (aq), Ecell° 5 21.29 V

How do I find n for deltaGº= -nFE_cellº?

Thanks!

Jessica Castellanos
Posts: 102
Joined: Sat Aug 24, 2019 12:17 am
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Re: 6L. 1b

Postby Jessica Castellanos » Sun Mar 01, 2020 4:36 pm

The n represents the electrons transferred in the redox reaction. So to do that, find the oxidation states of the reactants and products, identify the reduction and oxidation reaction, balance the charges, and the total amount of electrons transferred in this reaction is the n value.


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