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MnO4 (aq) + Fe²+ (aq) 1.2 A 0.5510 g ore sample containing iron oxides was dissolved completely in acid. A reducing agent was added to ensure all iron was in the form of iron(II)-ions. The solution was reacted with 37.50 mL of 0.04240 M KMnO4 in acidic medium, which converted all Fe²+ to Fe³+ -ions, according to the following unbalanced reaction equation: Fe³+ (aq) + Mn²+ (aq) Calculate the mass percentage of iron in the sample.

MnO4 (aq) + Fe²+ (aq) 1.2 A 0.5510 g ore sample containing iron oxides was dissolved completely in acid. A reducing agent was added to ensure all iron was in the form of iron(II)-ions. The solution was reacted with 37.50 mL of 0.04240 M KMnO4 in acidic medium, which converted all Fe²+ to Fe³+ -ions, according to the following unbalanced reaction equation: Fe³+ (aq) + Mn²+ (aq) Calculate the mass percentage of iron in the sample.

Chemistry by OpenStax (2015-05-04)
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter19: Transition Metals And Coordination Chemistry
Section: Chapter Questions
Problem 11E: Iron (II) can be oxidized to iron (III) by dichromate ion, which is reduced to chromium (III) in...
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MnO4 (aq) + Fe²+ (aq) 1.2 A 0.5510 g ore sample containing iron oxides was dissolved completely in acid. A reducing agent was added to ensure all iron was in the form of iron(II)-ions. The solution was reacted with 37.50 mL of 0.04240 M KMnO4 in acidic medium, which converted all Fe²+ to Fe³+ -ions, according to the following unbalanced reaction equation: Fe³+ (aq) + Mn²+ (aq) Calculate the mass percentage of iron in the sample.
Transcribed Image Text:MnO4 (aq) + Fe²+ (aq) 1.2 A 0.5510 g ore sample containing iron oxides was dissolved completely in acid. A reducing agent was added to ensure all iron was in the form of iron(II)-ions. The solution was reacted with 37.50 mL of 0.04240 M KMnO4 in acidic medium, which converted all Fe²+ to Fe³+ -ions, according to the following unbalanced reaction equation: Fe³+ (aq) + Mn²+ (aq) Calculate the mass percentage of iron in the sample.
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