Molar Mass of CaC2 (Calcium Carbide)

Molar Mass Calculator

What is the molar mass of CaC₂?

Answer

M(CaC₂) =

64.100 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
Cacalcium	1	40.078	40.078 w ≈ 62.52%	≈ 62.52%
Ccarbon	2	12.011	24.022 w ≈ 37.48%	≈ 37.48%
Σ = 64.100 g/mol w = 100%				100%

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

Mass fractions of the elements

Ca 62.52%C 37.48%

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Molar masses of substances nearby

Formula	M, g/mol
HNO₃ (nitric acid)	63.012
Cu (copper)	63.546
SO₂ (sulfur dioxide)	64.06
CaC₂ (calcium carbide)	64.100
C₂H₅Cl (chloroethane)	64.51
NaN₃ (sodium azide)	65.011
KCN (potassium cyanide)	65.116

FAQ

What is the molar mass of CaC2?

M(CaC₂) = 64.100 g/mol

How to calculate the molar mass of CaC₂?

Add up the atomic weights of all the atoms in the formula: 40.078 + 2 × 12.011 = 64.100 g/mol.

How many grams are in 2 moles of CaC₂?

m = n × M = 2 mol × 64.100 g/mol = 128.200 g.

See Also