Molar mass of hydrogen peroxide (H2O2)

The molar mass of hydrogen peroxide (H2O2) is 34.014 g/mol.

Step-by-step calculation

Element	Atoms	Atomic mass	Subtotal
Hydrogen	× 2	1.008	= 2.016
Oxygen	× 2	15.999	= 31.998
Total			34.014 g/mol

Hydrogen peroxide is a very pale blue liquid when pure, and it looks colorless in the dilute solutions sold in stores.
A 3 percent solution is used as a mild antiseptic and bleach, while concentrated grades bleach paper pulp and have been used as rocket propellant.
It slowly decomposes into water and oxygen gas, and light, heat, or catalysts such as manganese dioxide or the enzyme catalase speed this up dramatically.

H₂O NaCl CO₂ C₆H₁₂O₆ H₂SO₄ Ca(OH)₂ CuSO₄·5H₂O C₈H₁₀N₄O₂

Could not read that formula

NaOH Sodium hydroxide H₂O Water H₂SO₄ Sulfuric acid NaHCO₃ Sodium bicarbonate KOH Potassium hydroxide C₂H₅OH Ethanol

What is the molar mass of H2O2?

The molar mass of hydrogen peroxide (H2O2) is 34.014 g/mol.

How do you calculate the molar mass of H2O2?

Multiply the atomic mass of each element by the number of its atoms in H2O2, then add the results: 2 × 1.008 (H) + 2 × 15.999 (O) = 34.014 g/mol.

What percentage of H2O2 is Oxygen?

Oxygen makes up 94.07% of the mass of hydrogen peroxide (H2O2).