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April 27, 2015

Homework Help: Chemistry

Posted by Husy on Tuesday, March 23, 2010 at 7:23am.

What is the reduction half-reaction for the reaction between iron(II) sulfate and potassium permanganate in a sulfuric acid solution?
5Fe2+(aq) + MnO4(aq) + 8H+(aq) --> 5Fe3+(aq) + Mn2+(aq) + 4H2O(l)

a. MnO4 + 3e -->Mn2+(aq) + 4H2O
b. MnO4(aq) + 8H+(aq) + 5e -->Mn2+(aq) + 4H2O
c. MnO4(aq) + 5e -->Mn2+(aq) + SO42(aq)
d. Fe2+(aq) + 2e -->Fe(s)
e. 5Fe2+(aq) -->5Fe3+(aq) + 5e

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