Molar Mass of CaWO4 (Calcium Tungstate)

Molar Mass Calculator

What is the molar mass of CaWO₄?

Answer

M(CaWO₄) ≈

287.91 g/mol

Atomic weights: IUPAC standard values (CIAAW, 2024); the sum is rounded to the decimal places of the least precise one — W: 183.84.

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 ≈ 13.92%	≈ 13.92%
Wtungsten	1	183.84	183.84 w ≈ 63.85%	≈ 63.85%
Ooxygen	4	15.999	63.996 w ≈ 22.23%	≈ 22.23%
Σ = 287.914 ≈ 287.91 g/mol w = 100%				100%

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

Mass fractions of the elements

W 63.85%

O 22.23%Ca 13.92%

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Molar masses of substances nearby

Formula	M, g/mol
C₁₈H₃₆O₂ (stearic acid)	284.484
Na₂CO₃·10H₂O (sodium carbonate decahydrate)	286.138
ZnSO₄·7H₂O (zinc sulfate heptahydrate)	287.54
CaWO₄ (calcium tungstate)	287.91
C₁₂H₂₅NaO₄S (sodium lauryl sulfate)	288.38
CaI₂ (calcium iodide)	293.88
K₂Cr₂O₇ (potassium dichromate)	294.181

FAQ

What is the molar mass of CaWO4?

M(CaWO₄) ≈ 287.91 g/mol

How to calculate the molar mass of CaWO₄?

Add up the atomic weights of all the atoms in the formula: 40.078 + 183.84 + 4 × 15.999 = 287.914 ≈ 287.91 g/mol.

How many grams are in 2 moles of CaWO₄?

m = n × M = 2 mol × 287.91 g/mol = 575.82 g.

See Also