Molar Mass of C3O2 (Carbon Suboxide)

Molar Mass Calculator

What is the molar mass of C₃O₂?

Answer

M(C₃O₂) =

68.031 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 ≈ 52.97%	≈ 52.97%
Ooxygen	2	15.999	31.998 w ≈ 47.03%	≈ 47.03%
Σ = 68.031 g/mol w = 100%				100%

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

Mass fractions of the elements

C 52.97%O 47.03%

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Molar masses of substances nearby

Formula	M, g/mol
KCN (potassium cyanide)	65.116
Zn (zinc)	65.38
HCOONa (sodium formate)	68.007
C₃O₂ (carbon suboxide)	68.031
C₃H₄N₂ (imidazole)	68.079
(NH₄)₂S (ammonium sulfide)	68.14
LiNO₃ (lithium nitrate)	68.94

FAQ

What is the molar mass of C3O2?

M(C₃O₂) = 68.031 g/mol

How to calculate the molar mass of C₃O₂?

Add up the atomic weights of all the atoms in the formula: 3 × 12.011 + 2 × 15.999 = 68.031 g/mol.

How many grams are in 2 moles of C₃O₂?

m = n × M = 2 mol × 68.031 g/mol = 136.062 g.

See Also