Molar Mass of CoCO3 (Cobalt(II) Carbonate)

Molar Mass Calculator

What is the molar mass of CoCO₃?

Answer

M(CoCO₃) =

118.941 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
Cocobalt	1	58.933	58.933 w ≈ 49.55%	≈ 49.55%
Ccarbon	1	12.011	12.011 w ≈ 10.10%	≈ 10.10%
Ooxygen	3	15.999	47.997 w ≈ 40.35%	≈ 40.35%
Σ = 118.941 g/mol w = 100%				100%

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

Mass fractions of the elements

Co 49.55%O 40.35%

C 10.10%

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Molar masses of substances nearby

Formula	M, g/mol
C₄H₆O₄ (succinic acid)	118.088
NiCO₃ (nickel(II) carbonate)	118.701
Sn (tin)	118.71
CoCO₃ (cobalt(II) carbonate)	118.941
Cl₂OS (thionyl chloride)	118.96
KBr (potassium bromide)	119.002
CHCl₃ (chloroform)	119.37

FAQ

What is the molar mass of CoCO3?

M(CoCO₃) = 118.941 g/mol

How to calculate the molar mass of CoCO₃?

Add up the atomic weights of all the atoms in the formula: 58.933 + 12.011 + 3 × 15.999 = 118.941 g/mol.

How many grams are in 2 moles of CoCO₃?

m = n × M = 2 mol × 118.941 g/mol = 237.882 g.

See Also