Molar Mass of C8H8O3

Molar Mass Calculator

What is the molar mass of C₈H₈O₃?

Answer

M(C₈H₈O₃) =

152.149 g/mol

Atomic weights: IUPAC standard values (CIAAW, 2024).

Several substances (isomers) share this composition; their molar mass is the same.

Contribution of each element
Element	Atoms, n	Atomic weight, A	n × A, g/mol Mass fraction, w	Mass fraction, w
Ccarbon	8	12.011	96.088 w ≈ 63.15%	≈ 63.15%
Hhydrogen	8	1.0080	8.0640 w ≈ 5.30%	≈ 5.30%
Ooxygen	3	15.999	47.997 w ≈ 31.55%	≈ 31.55%
Σ = 152.149 g/mol w = 100%				100%

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

Mass fractions of the elements

C 63.15%

O 31.55%H 5.30%

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Molar masses of substances nearby

Formula	M, g/mol
FeSO₄ (iron(II) sulfate)	151.90
Eu (europium)	151.96
Cr₂O₃ (dichromium trioxide)	151.989
C₈H₈O₃	152.149
C₁₀H₁₆O (camphor)	152.237
BaO (barium oxide)	153.33
CCl₄ (carbon tetrachloride)	153.81

FAQ

What is the molar mass of C8H8O3?

M(C₈H₈O₃) = 152.149 g/mol

How to calculate the molar mass of C₈H₈O₃?

Add up the atomic weights of all the atoms in the formula: 8 × 12.011 + 8 × 1.0080 + 3 × 15.999 = 152.149 g/mol.

How many grams are in 2 moles of C₈H₈O₃?

m = n × M = 2 mol × 152.149 g/mol = 304.298 g.

See Also