Molar Mass of CuS (Copper Monosulfide)

Molar Mass Calculator

What is the molar mass of CuS?

Answer

M(CuS) ≈

95.61 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
Cucopper	1	63.546	63.546 w ≈ 66.47%	≈ 66.47%
Ssulfur	1	32.06	32.06 w ≈ 33.53%	≈ 33.53%
Σ = 95.606 ≈ 95.61 g/mol w = 100%				100%

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

Mass fractions of the elements

Cu 66.47%

S 33.53%

Related Calculations

See Also

Liters to Kilograms - How many kilograms are in a liter of water, honey, gasoline, sand and other substances — by density
Grams to Kg - Convert Grams to Kilograms
Percentage Calculator: Fraction to Percent - What percentage one number is of another? Convert fraction into a percentage
Scientific Calculator with Memory & History - Free Engineering Calculator Online with Memory Function, Operation History, Logarithms & Trigonometry. Similar to ti-83, ti-84, ti-89

Recalculate with different values ↑

Molar masses of substances nearby

Formula	M, g/mol
C₆H₆O (phenol)	94.113
K₂O (potassium oxide)	94.195
MgCl₂ (magnesium chloride)	95.21
CuS (copper monosulfide)	95.61
Mo (molybdenum)	95.95
NaC₃H₅O₂ (sodium propionate)	96.061
(NH₄)₂CO₃ (ammonium carbonate)	96.086

FAQ

What is the molar mass of CuS?

M(CuS) ≈ 95.61 g/mol

How to calculate the molar mass of CuS?

Add up the atomic weights of all the atoms in the formula: 63.546 + 32.06 = 95.606 ≈ 95.61 g/mol.

How many grams are in 2 moles of CuS?

m = n × M = 2 mol × 95.61 g/mol = 191.22 g.

See Also