Molar Mass of HCOOH (Formic Acid)

Molar Mass Calculator
Chemical formula Write symbols with a capital letter: CoCl2 is cobalt chloride, COCl2 is phosgene. A hydrate takes a dot: CuSO4·5H2O or CuSO4.5H2O

What is the molar mass of HCOOH?

Answer

M(HCOOH) =
46.025 g/mol

Atomic weights: IUPAC standard values (CIAAW, 2024).

Contribution of each element
Element Atoms, n Atomic weight, A n × A, g/mol Mass fraction, w
Hhydrogen21.00802.0160 w ≈ 4.38%
Ccarbon112.01112.011 w ≈ 26.10%
Ooxygen215.99931.998 w ≈ 69.52%
Σ = 46.025 g/mol w = 100%

Atomic weights: CIAAW, Abridged Standard Atomic Weights (2024)

Mass fractions of the elements

C 26.10%H 4.38%

Related Calculations

See Also

Recalculate with different values ↑

Molar masses of substances nearby

FormulaM, g/mol
Sc (scandium)44.956
C₂H₇N (ethylamine)45.085
NO₂ (nitrogen dioxide)46.005
HCOOH (formic acid)46.025
C₂H₅OH (ethanol)46.069
CH₆N₂ (monomethylhydrazine)46.073
HNO₂ (nitrous acid)47.013

FAQ

What is the molar mass of HCOOH?

M(HCOOH) = 46.025 g/mol

How to calculate the molar mass of HCOOH?

Add up the atomic weights of all the atoms in the formula: 2 × 1.0080 + 12.011 + 2 × 15.999 = 46.025 g/mol.

How many grams are in 2 moles of HCOOH?

m = n × M = 2 mol × 46.025 g/mol = 92.050 g.

See Also