Analysis of hydrogen peroxide solutions


Assignment:

Fill a burette with 50 mL of 0.2M potassium permanganate solution. Add 10 mL of NEW hydrogen peroxide and 2 mL of 6M sulfuric acid to a flask. Titrate the hydrogen peroxide with the KMnO4 solution to the purple endpoint of excess MnO4- ion.

Q1. Volume of potassium permanganate used in each titration (mL):50mL
Q2. The volume of potassium permanganate required to titrate 10 mL of the new hydrogen peroxide (mL):20mL
Q3. Calculate the concentration of H2O2 from the volume of KMnO4 used and the stoichiometry of the reaction (MW of H2O2 is 34.01).

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Chemistry: Analysis of hydrogen peroxide solutions
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