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The amount of Fe (55.85g/mole)in a 16.9776-g sample of an ore was determined by a redox titration with K2Cr2O7. The sample was dissolved in HCI and the iron brought into the +2 oxidation state using a Jones reductor. Titration to the diphenylamine sulfonic acid end point required 43.7238 mL of 0.1351 M K2Cr2O7. Report the iron content of the ore as %w/w Fe2O3 (159.69g/mole) (Answers should be written in 2 decimals place and do not include the UNIT)

The amount of Fe (55.85g/mole)in a 16.9776-g sample of an ore was determined by a redox titration with K2Cr2O7. The sample was dissolved in HCI and the iron brought into the +2 oxidation state using a Jones reductor. Titration to the diphenylamine sulfonic acid end point required 43.7238 mL of 0.1351 M K2Cr2O7. Report the iron content of the ore as %w/w Fe2O3 (159.69g/mole) (Answers should be written in 2 decimals place and do not include the UNIT)

Fundamentals Of Analytical Chemistry
Fundamentals Of Analytical Chemistry
9th Edition
ISBN:9781285640686
Author:Skoog
Publisher:Skoog
Chapter13: Titrations In Analytical Chemistry
Section: Chapter Questions
Problem 13.27QAP
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The amount of Fe (55.85g/mole)in a 16.9776-g sample of an ore was determined by a redox titration with K2Cr2O7. The sample was dissolved in HCI and the iron brought into the +2 oxidation state using a Jones reductor. Titration to the diphenylamine sulfonic acid end point required 43.7238 mL of 0.1351 M K2Cr2O7. Report the iron content of the ore as %w/w Fe2O3 (159.69g/mole) (Answers should be written in 2 decimals place and do not include the UNIT)
Transcribed Image Text:The amount of Fe (55.85g/mole)in a 16.9776-g sample of an ore was determined by a redox titration with K2Cr2O7. The sample was dissolved in HCI and the iron brought into the +2 oxidation state using a Jones reductor. Titration to the diphenylamine sulfonic acid end point required 43.7238 mL of 0.1351 M K2Cr2O7. Report the iron content of the ore as %w/w Fe2O3 (159.69g/mole) (Answers should be written in 2 decimals place and do not include the UNIT)
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