Molar mass of formic acid (HCOOH)

The molar mass of formic acid (HCOOH) is 46.025 g/mol.

methanoic acid

Step-by-step calculation

Element	Atoms	Atomic mass	Subtotal
Hydrogen	× 2	1.008	= 2.016
Carbon	× 1	12.011	= 12.011
Oxygen	× 2	15.999	= 31.998
Total			46.025 g/mol

Percent composition by element

Hydrogen 4.38%
Carbon 26.1%
Oxygen 69.52%

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 HCOOH?

The molar mass of formic acid (HCOOH) is 46.025 g/mol.

How do you calculate the molar mass of HCOOH?

Multiply the atomic mass of each element by the number of its atoms in HCOOH, then add the results: 2 × 1.008 (H) + 1 × 12.011 (C) + 2 × 15.999 (O) = 46.025 g/mol.

What percentage of HCOOH is Oxygen?

Oxygen makes up 69.52% of the mass of formic acid (HCOOH).