A 0.5585 g sample of ferrous ammonium sulfate hexahydrate, Fe(NH4)2(SO4)2(H2O)6 (MW = 392.18 g/mol) requires 21.45 ml of a KMnO4 solution to reach a pink endpoint. What is the molarity of the KMnO4 solution?

A 0.5585 g sample of ferrous ammonium sulfate hexahydrate, Fe(NH4)2(SO4)2(H2O)6 (MW = 392.18 g/mol) requires 21.45 ml of a KMnO4 solution to reach a pink endpoint. What is the molarity of the KMnO4 solution?

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter13: Titrations In Analytical Chemistry

Section: Chapter Questions

Problem 13.11QAP

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Concept explainers

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".

Question

A 0.5585 g sample of ferrous ammonium sulfate hexahydrate, Fe(NH4)2(SO4)2(H2O)6
(MW = 392.18 g/mol) requires 21.45 ml of a KMnO4 solution to reach a pink
endpoint. What is the molarity of the KMnO4 solution?

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