Molar Mass of HClO (Hypochlorous Acid)

Molar Mass Calculator

What is the molar mass of HClO?

Answer

M(HClO) ≈

52.46 g/mol

Atomic weights: IUPAC standard values (CIAAW, 2024); the sum is rounded to the decimal places of the least precise one — Cl: 35.45.

Contribution of each element
Element	Atoms, n	Atomic weight, A	n × A, g/mol Mass fraction, w	Mass fraction, w
Hhydrogen	1	1.0080	1.0080 w ≈ 1.92%	≈ 1.92%
Clchlorine	1	35.45	35.45 w ≈ 67.58%	≈ 67.58%
Ooxygen	1	15.999	15.999 w ≈ 30.50%	≈ 30.50%
Σ = 52.457 ≈ 52.46 g/mol w = 100%				100%

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

Mass fractions of the elements

Cl 67.58%

O 30.50%H 1.92%

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Molar masses of substances nearby

Formula	M, g/mol
NaCN (sodium cyanide)	49.008
V (vanadium)	50.942
Cr (chromium)	51.996
HClO (hypochlorous acid)	52.46
C₃H₃N (acrylonitrile)	53.064
NH₄Cl (ammonium chloride)	53.49
OF₂ (oxygen difluoride)	53.995

FAQ

What is the molar mass of HClO?

M(HClO) ≈ 52.46 g/mol

How to calculate the molar mass of HClO?

Add up the atomic weights of all the atoms in the formula: 1.0080 + 35.45 + 15.999 = 52.457 ≈ 52.46 g/mol.

How many grams are in 2 moles of HClO?

m = n × M = 2 mol × 52.46 g/mol = 104.92 g.

See Also