Molar Mass of CS2 (Carbon Disulfide)

Molar Mass Calculator

What is the molar mass of CS₂?

Answer

M(CS₂) ≈

76.13 g/mol

Atomic weights: IUPAC standard values (CIAAW, 2024); the sum is rounded to the decimal places of the least precise one — S: 32.06.

Contribution of each element
Element	Atoms, n	Atomic weight, A	n × A, g/mol Mass fraction, w	Mass fraction, w
Ccarbon	1	12.011	12.011 w ≈ 15.78%	≈ 15.78%
Ssulfur	2	32.06	64.12 w ≈ 84.22%	≈ 84.22%
Σ = 76.131 ≈ 76.13 g/mol w = 100%				100%

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

Mass fractions of the elements

S 84.22%

C 15.78%

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Molar masses of substances nearby

Formula	M, g/mol
C₂H₅NO₂ (glycine)	75.067
N₂O₃ (dinitrogen trioxide)	76.011
C₃H₈O₂ ((RS)-propylene glycol)	76.095
CS₂ (carbon disulfide)	76.13
CH₃COONH₄ (ammonium acetate)	77.083
Al(OH)₃ (aluminum hydroxide)	78.003
Na₂S (sodium sulfide)	78.04

FAQ

What is the molar mass of CS2?

M(CS₂) ≈ 76.13 g/mol

How to calculate the molar mass of CS₂?

Add up the atomic weights of all the atoms in the formula: 12.011 + 2 × 32.06 = 76.131 ≈ 76.13 g/mol.

How many grams are in 2 moles of CS₂?

m = n × M = 2 mol × 76.13 g/mol = 152.26 g.

See Also