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Analysis of Hydrogen Peroxide Solutions


Learning Objectives:

Students apply titration to determine the mass percentage of a compound in a solution.

Procedures:

Students determine the mass percentage of hydrogen peroxide in old and new bottles of commercial hydrogen peroxide. They perform a titration with a known quantity of potassium permanganate until the titration reaches the endpoint; the mass percent of hydrogen peroxide is then calculated from the masses of the solutions used in the experiment, as well as from the stoichiometry of the redox reaction.