Molar mass of methanol (CH3OH)

The molar mass of methanol (CH3OH) is 32.042 g/mol.

methyl alcohol

Step-by-step calculation

Element	Atoms	Atomic mass	Subtotal
Carbon	× 1	12.011	= 12.011
Hydrogen	× 4	1.008	= 4.032
Oxygen	× 1	15.999	= 15.999
Total			32.042 g/mol

Percent composition by element

Carbon 37.49%
Hydrogen 12.58%
Oxygen 49.93%

Methanol facts

Methanol is the simplest alcohol, a colorless, volatile, and flammable liquid with a mild odor.
It is used to make formaldehyde, acetic acid, and plastics, and as a fuel, a solvent, and the antifreeze in windshield washer fluid.
Methanol is highly toxic because the body converts it into formaldehyde and formic acid, and swallowing even small amounts can cause blindness.

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 CH3OH?

The molar mass of methanol (CH3OH) is 32.042 g/mol.

How do you calculate the molar mass of CH3OH?

Multiply the atomic mass of each element by the number of its atoms in CH3OH, then add the results: 1 × 12.011 (C) + 4 × 1.008 (H) + 1 × 15.999 (O) = 32.042 g/mol.

What percentage of CH3OH is Oxygen?

Oxygen makes up 49.93% of the mass of methanol (CH3OH).