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The iron content of a mineral deposit was determined by titration with KMNO4 to see if it had enough iron for processing. A sample of iron ore with a mass of 2.126 g was dissolved with HCl and then treated with a reducing agent to convert any Fe³+ in the ore to Fe²+. Titration with 0.0565 M KMNO4 solution according to the equation 8H*(aq) + MnO. (aq) + 5Fe²*(aq) → 5Fe*(aq) + Mn²*(aq) + 4H2O(I) required 23.25 mL of the titrant to reach the endpoint where the purple MnO4- ion was no longer being consumed. The molar mass of Fe is 55.85 g/mol. Determine the mass percent iron in the mineral deposit.

The iron content of a mineral deposit was determined by titration with KMNO4 to see if it had enough iron for processing. A sample of iron ore with a mass of 2.126 g was dissolved with HCl and then treated with a reducing agent to convert any Fe³+ in the ore to Fe²+. Titration with 0.0565 M KMNO4 solution according to the equation 8H*(aq) + MnO. (aq) + 5Fe²*(aq) → 5Fe*(aq) + Mn²*(aq) + 4H2O(I) required 23.25 mL of the titrant to reach the endpoint where the purple MnO4- ion was no longer being consumed. The molar mass of Fe is 55.85 g/mol. Determine the mass percent iron in the mineral deposit.

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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B Filled In Lecture Slides - CH V Student Registration / Stude x M Experiment 7 Lab Report 101 Chem101 > What is Dissociation in Che X G copper hydroxide is soluble × + A app.101edu.co * E E Question 33 of 33 Submit The iron content of a mineral deposit was determined by titration with KMNO4 to see if it had enough iron for processing. A sample of iron ore with a mass of 2.126 g was dissolved with HCl and then treated with a reducing agent to convert any Fe+ in the ore to Fe²*. Titration with 0.0565 M KMNO4 solution according to the equation 8H*(aq) + MnO4 (aq) + 5Fe²*(aq) → 5Fe³*(aq) + Mn²“(aq) + 4H2O(I) | % required 23.25 mL of the titrant to reach the endpoint where the purple MnO4 ion was no longer being consumed. The molar mass of Fe is 55.85 g/mol. 1 2 Determine the mass percent iron in the mineral deposit. 4 C 7 8 9. +/- х 100 3:16 PM DEL 11/7/2021 ...
Transcribed Image Text:B Filled In Lecture Slides - CH V Student Registration / Stude x M Experiment 7 Lab Report 101 Chem101 > What is Dissociation in Che X G copper hydroxide is soluble × + A app.101edu.co * E E Question 33 of 33 Submit The iron content of a mineral deposit was determined by titration with KMNO4 to see if it had enough iron for processing. A sample of iron ore with a mass of 2.126 g was dissolved with HCl and then treated with a reducing agent to convert any Fe+ in the ore to Fe²*. Titration with 0.0565 M KMNO4 solution according to the equation 8H*(aq) + MnO4 (aq) + 5Fe²*(aq) → 5Fe³*(aq) + Mn²“(aq) + 4H2O(I) | % required 23.25 mL of the titrant to reach the endpoint where the purple MnO4 ion was no longer being consumed. The molar mass of Fe is 55.85 g/mol. 1 2 Determine the mass percent iron in the mineral deposit. 4 C 7 8 9. +/- х 100 3:16 PM DEL 11/7/2021 ...
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