Molar mass of oxalic acid (C2H2O4)

The molar mass of oxalic acid (C2H2O4) is 90.034 g/mol.

Step-by-step calculation

Element	Atoms	Atomic mass	Subtotal
Carbon	× 2	12.011	= 24.022
Hydrogen	× 2	1.008	= 2.016
Oxygen	× 4	15.999	= 63.996
Total			90.034 g/mol

Percent composition by element

Carbon 26.68%
Hydrogen 2.24%
Oxygen 71.08%

Try another formula

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

Could not read that formula

Related compounds

NaHCO₃ Sodium bicarbonate C₂H₅OH Ethanol CH₃COOH Acetic acid C₇H₆O₂ Benzoic acid C₉H₈O₄ Aspirin C₇H₆O₃ Salicylic acid

FAQ

What is the molar mass of C2H2O4?

The molar mass of oxalic acid (C2H2O4) is 90.034 g/mol.

How do you calculate the molar mass of C2H2O4?

Multiply the atomic mass of each element by the number of its atoms in C2H2O4, then add the results: 2 × 12.011 (C) + 2 × 1.008 (H) + 4 × 15.999 (O) = 90.034 g/mol.

What percentage of C2H2O4 is Oxygen?

Oxygen makes up 71.08% of the mass of oxalic acid (C2H2O4).