Molar Mass of Na2CO3 (Sodium Carbonate)

Molar Mass Calculator

What is the molar mass of Na₂CO₃?

Answer

M(Na₂CO₃) =

105.988 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
Nasodium	2	22.990	45.980 w ≈ 43.38%	≈ 43.38%
Ccarbon	1	12.011	12.011 w ≈ 11.33%	≈ 11.33%
Ooxygen	3	15.999	47.997 w ≈ 45.29%	≈ 45.29%
Σ = 105.988 g/mol w = 100%				100%

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

Mass fractions of the elements

O 45.29%Na 43.38%

C 11.33%

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Molar masses of substances nearby

Formula	M, g/mol
C₃H₄O₄ (malonic acid)	104.061
C₈H₈ (styrene)	104.152
BeSO₄ (beryllium sulfate)	105.07
Na₂CO₃ (sodium carbonate)	105.988
C₇H₆O (benzaldehyde)	106.124
C₈H₁₀ (ethylbenzene)	106.168
Pd (palladium)	106.42

FAQ

What is the molar mass of Na2CO3?

M(Na₂CO₃) = 105.988 g/mol

How to calculate the molar mass of Na₂CO₃?

Add up the atomic weights of all the atoms in the formula: 2 × 22.990 + 12.011 + 3 × 15.999 = 105.988 g/mol.

How many grams are in 2 moles of Na₂CO₃?

m = n × M = 2 mol × 105.988 g/mol = 211.976 g.

See Also