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  3. 7. given the standard reduction potential for the

7. Given the standard reduction potential for the following two half-cell reactions (in the presence of...

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Chemistry

7. Given the standard reduction potential for the following twohalf-cell reactions (in the presence of 1.00 M HCl):

Fe3+ + e <==> Fe2+, E0 = + 0.68 V

AsO4 - + 2H+ + 2e <==> AsO3 - + H2O, Eo = +0.559 V.

Please calculate the system potential at the equivalence pointwhen Fe3+ was used to titrate AsO3 - in the presence of 1.00 MHCl.

Answer: 0.60 V

Answer & Explanation Solved by verified expert
3.8 Ratings (395 Votes)
since the concentraion is not given i will be using conceot for this ie from the reduction potentails Fe3 gets reduced easily when compared to AsO4 hence Fe3 will go under reduction and    See Answer
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