Molar Mass of C3H4O2 (Acrylic Acid)

Molar Mass Calculator

What is the molar mass of C₃H₄O₂?

Answer

M(C₃H₄O₂) =

72.063 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	3	12.011	36.033 w ≈ 50.00%	≈ 50.00%
Hhydrogen	4	1.0080	4.0320 w ≈ 5.60%	≈ 5.60%
Ooxygen	2	15.999	31.998 w ≈ 44.40%	≈ 44.40%
Σ = 72.063 g/mol w = 100%				100%

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

Mass fractions of the elements

C 50.00%O 44.40%

H 5.60%

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Molar masses of substances nearby

Formula	M, g/mol
MnO (manganese(II) oxide)	70.937
C₃H₅NO (acrylamide)	71.079
FeO (iron(II) oxide)	71.844
C₃H₄O₂ (acrylic acid)	72.063
C₄H₈O (butanone)	72.107
CaS (calcium sulfide)	72.14
C₅H₁₂ (n-pentane)	72.151

FAQ

What is the molar mass of C3H4O2?

M(C₃H₄O₂) = 72.063 g/mol

How to calculate the molar mass of C₃H₄O₂?

Add up the atomic weights of all the atoms in the formula: 3 × 12.011 + 4 × 1.0080 + 2 × 15.999 = 72.063 g/mol.

How many grams are in 2 moles of C₃H₄O₂?

m = n × M = 2 mol × 72.063 g/mol = 144.126 g.

See Also