Problem: Hydrogen peroxide (H2O2) decomposes in the presence of a catalyst to form water and oxygen. The catalyst is added to 5.00 mL of a hydrogen peroxide solution at 25.0 C, and 49.5 mL of gas is collected over water at a total pressure of 763.6 mmHg.Write and balance the chemical reaction (note: catalysts do not appear in balanced chemical equations).  Express your answer as a chemical equation including phases. 

FREE Expert Solution

Hydrogen peroxide = H2O2 (aq) 


Complete reaction: H2O2 (aq) → H2O (l) + O2 (g)


When balancing chemical equations, the number of each atom must be the same on both sides of the equation.

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Problem Details

Hydrogen peroxide (H2O2) decomposes in the presence of a catalyst to form water and oxygen. The catalyst is added to 5.00 mL of a hydrogen peroxide solution at 25.0 C, and 49.5 mL of gas is collected over water at a total pressure of 763.6 mmHg.

Write and balance the chemical reaction (note: catalysts do not appear in balanced chemical equations).  Express your answer as a chemical equation including phases. 

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