Molar mass of sodium peroxide (Na2O2)

The molar mass of sodium peroxide (Na2O2) is 77.978 g/mol.

Step-by-step calculation

ElementAtomsAtomic massSubtotal
Sodium × 2 22.99 = 45.98
Oxygen × 2 15.999 = 31.998
Total77.978 g/mol

Percent composition by element

  • Sodium 58.97%
  • Oxygen 41.03%

Try another formula

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

Could not read that formula

Related compounds

NaOH Sodium hydroxide NaHCO3 Sodium bicarbonate Na2CO3 Sodium carbonate NaNO3 Sodium nitrate CH3COONa Sodium acetate Na2SO4 Sodium sulfate

FAQ

What is the molar mass of Na2O2?

The molar mass of sodium peroxide (Na2O2) is 77.978 g/mol.

How do you calculate the molar mass of Na2O2?

Multiply the atomic mass of each element by the number of its atoms in Na2O2, then add the results: 2 × 22.99 (Na) + 2 × 15.999 (O) = 77.978 g/mol.

What percentage of Na2O2 is Sodium?

Sodium makes up 58.97% of the mass of sodium peroxide (Na2O2).