Chemistry, 28.02.2021 17:00 leslie1811
An ore is to be analyzed for its iron content by an oxidation-reduction titration with permanganate ion. A 4.230 g sample of the ore is dissolved in hydrochloric acid and passed over a reducing agent so that all the iron is in the form Fe2+. The Fe2+ (aq) is completely oxidized by 31.60 mL of a 0.05120 M solution of KMnO4. The unbalanced equation for the reaction is:
KMnO4(aq) + HCl(aq) + FeCl(aq) ---> MnCl(aq) + FeCl3(aq) + H2O(1)
the balanced equation is:
8H+ + MnO4 + 5Fe2+ â Mn2+ + 5Fe3+ + 4H2O
Required:
Calculate the amount of iron in the sample and its mass percentage in the ore.
Answers: 1
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An ore is to be analyzed for its iron content by an oxidation-reduction titration with permanganate...
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