Molar Mass of C2H6O6

Molar Mass Calculator

What is the molar mass of C₂H₆O₆?

Answer

M(C₂H₆O₆) =

126.064 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 ≈ 19.06%	≈ 19.06%
Hhydrogen	6	1.0080	6.0480 w ≈ 4.80%	≈ 4.80%
Ooxygen	6	15.999	95.994 w ≈ 76.15%	≈ 76.15%
Σ = 126.064 g/mol w = 100%				100%

Each fraction is rounded on its own, so the printed ones add up to 100.01%; unrounded, they make exactly 100%.

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

Mass fractions of the elements

O 76.15%

C 19.06%H 4.80%

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Molar masses of substances nearby

Formula	M, g/mol
SrF₂ (strontium fluoride)	125.62
MnCl₂ (manganese(II) chloride)	125.84
Na₂SO₃ (sodium sulfite)	126.04
C₂H₆O₆	126.064
C₅H₆N₂O₂ (thymine)	126.115
FeCl₂ (ferrous chloride)	126.75
AgF (silver fluoride)	126.87

FAQ

What is the molar mass of C2H6O6?

M(C₂H₆O₆) = 126.064 g/mol

How to calculate the molar mass of C₂H₆O₆?

Add up the atomic weights of all the atoms in the formula: 2 × 12.011 + 6 × 1.0080 + 6 × 15.999 = 126.064 g/mol.

How many grams are in 2 moles of C₂H₆O₆?

m = n × M = 2 mol × 126.064 g/mol = 252.128 g.

See Also