Hydrogen peroxide (H2O2) readily decomposes to form water and oxygen gas: 2H2O2 (aq) → 2H2O (l) + O2 (g) What concentration of hydrogen peroxide would cause this reaction to proceed most quickly?

Question

Santos Burgess

Chemistry

4 November, 20:19

Hydrogen peroxide (H2O2) readily decomposes to form water and oxygen gas: 2H2O2 (aq) → 2H2O (l) + O2 (g) What concentration of hydrogen peroxide would cause this reaction to proceed most quickly?

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Answers (1)

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Lucian Frey · Answer 1

Hydrogen peroxide is a powerful oxidizer. When exposed to sunlight it quickly decomposes to form water and oxygen as given by the following equation.

2H2O2 (aq) → 2H2O (l) + O2 (g)

Hydrogen peroxide is commercially available as a 30% w/w solution, which is the concentration that would facilitate the above reaction. This implies that the concentration would be 30 g of H2O2 in 100 g of the solution.