Molar Mass of C4H2O3 (Maleic Anhydride)

Molar Mass Calculator

What is the molar mass of C₄H₂O₃?

Answer

M(C₄H₂O₃) =

98.057 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	4	12.011	48.044 w ≈ 49.00%	≈ 49.00%
Hhydrogen	2	1.0080	2.0160 w ≈ 2.06%	≈ 2.06%
Ooxygen	3	15.999	47.997 w ≈ 48.95%	≈ 48.95%
Σ = 98.057 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

C 49.00%O 48.95%

H 2.06%

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Molar masses of substances nearby

Formula	M, g/mol
Cu(OH)₂ (cupric hydroxide)	97.560
NH₄Br (ammonium bromide)	97.943
H₃PO₄ (phosphoric acid)	97.994
C₄H₂O₃ (maleic anhydride)	98.057
H₂SO₄ (sulfuric acid)	98.07
CH₃COOK (potassium acetate)	98.142
C₆H₁₀O (cyclohexanone)	98.145

FAQ

What is the molar mass of C4H2O3?

M(C₄H₂O₃) = 98.057 g/mol

How to calculate the molar mass of C₄H₂O₃?

Add up the atomic weights of all the atoms in the formula: 4 × 12.011 + 2 × 1.0080 + 3 × 15.999 = 98.057 g/mol.

How many grams are in 2 moles of C₄H₂O₃?

m = n × M = 2 mol × 98.057 g/mol = 196.114 g.

See Also