Question

In order to determine the concentration of a commercial

sample of hydrogen peroxide (H2O2
), 15 mL of it was
diluted to 300 mL. Then 20 mL of diluted solution was
acidified and titrated with a 0.021 M potassium
permanganate solution (KMnO4
). An average volume of
18.72 mL was required. Determine the concentration of
the original hydrogen peroxide.
IN SIMPLE ENGLISH

Answer 1

[AI-generated answer — Bot GPT 3.5]

To find the concentration of hydrogen peroxide in the original sample, a small portion of the sample was diluted and then titrated with potassium permanganate. The titration showed that 18.72 mL of the permanganate solution was needed to react with the hydrogen peroxide in the sample. By using this information and the initial dilution factor, the concentration of the original hydrogen peroxide can be calculated.