Iron(II) can be oxidized to iron(III) by permanganate ion in acidic solution. The perman...

Iron(II) can be oxidized to iron(III) by permanganate ion in acidic solution. The permanganate ion is reduced to manganese(II) ion.

(a) Write the oxidation half-reaction, the reduction half-reaction, and the overall redox equation.

(b) Calculate for the reaction.

(c) Calculate the percentage of Fe in an ore if a 0.3500-g sample is dissolved and the Fe²⁺ formed requires for titration 55.63 mL of a 0.0200 M solution of KMnO₄.