Molar Mass of Ag2S (Silver Sulfide)

Molar Mass Calculator

What is the molar mass of Ag₂S?

Answer

M(Ag₂S) =

247.80 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
Agsilver	2	107.87	215.74 w ≈ 87.06%	≈ 87.06%
Ssulfur	1	32.06	32.06 w ≈ 12.94%	≈ 12.94%
Σ = 247.80 g/mol w = 100%				100%

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

Mass fractions of the elements

Ag 87.06%

S 12.94%

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Molar masses of substances nearby

Formula	M, g/mol
BaCl₂·2H₂O (barium chloride dihydrate)	244.26
C₁₀H₁₆N₂O₃S (biotin)	244.31
MgSO₄·7H₂O (magnesium sulfate heptahydrate)	246.47
Ag₂S (silver sulfide)	247.80
CuSO₄·5H₂O (copper(II) sulfate pentahydrate)	249.68
(NH₄)₂Cr₂O₇ (ammonium dichromate)	252.063
BaCrO₄ (barium chromate)	253.32

FAQ

What is the molar mass of Ag2S?

M(Ag₂S) = 247.80 g/mol

How to calculate the molar mass of Ag₂S?

Add up the atomic weights of all the atoms in the formula: 2 × 107.87 + 32.06 = 247.80 g/mol.

How many grams are in 2 moles of Ag₂S?

m = n × M = 2 mol × 247.80 g/mol = 495.60 g.

See Also