Molar Mass of C2H6O2 (Ethylene Glycol)

Molar Mass Calculator

What is the molar mass of C₂H₆O₂?

Answer

M(C₂H₆O₂) =

62.068 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	Mass fraction, w
Ccarbon	2	12.011	24.022 w ≈ 38.70%	≈ 38.70%
Hhydrogen	6	1.0080	6.0480 w ≈ 9.74%	≈ 9.74%
Ooxygen	2	15.999	31.998 w ≈ 51.55%	≈ 51.55%
Σ = 62.068 g/mol w = 100%				100%

Each fraction is rounded on its own, so the printed ones add up to 99.99%; unrounded, they make exactly 100%.

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

Mass fractions of the elements

O 51.55%C 38.70%

H 9.74%

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Molar masses of substances nearby

Formula	M, g/mol
H₃BO₃ (orthoboric acid)	61.83
Na₂O (sodium oxide)	61.979
H₂CO₃ (carbonic acid)	62.024
C₂H₆O₂ (ethylene glycol)	62.068
MgF₂ (magnesium fluoride)	62.301
C₂H₃Cl (vinyl chloride)	62.50
HNO₃ (nitric acid)	63.012

FAQ

What is the molar mass of C2H6O2?

M(C₂H₆O₂) = 62.068 g/mol

How to calculate the molar mass of C₂H₆O₂?

Add up the atomic weights of all the atoms in the formula: 2 × 12.011 + 6 × 1.0080 + 2 × 15.999 = 62.068 g/mol.

How many grams are in 2 moles of C₂H₆O₂?

m = n × M = 2 mol × 62.068 g/mol = 124.136 g.

See Also