Molar mass

Molar Mass of Galena

The molar mass of galena (PbS) is 239.06 g/mol.

Galena at a glance

PropertyValue
Molar mass239.06 g/mol
Molecular weight239.06 u
Chemical formulaPbS
CAS number12179-39-4
PubChem CID14819

How to calculate the molar mass of galena

1 × 207 + 1 × 32.06 = 239.06 g/mol

  1. Count the atoms in PbS: Pb 1, S 1.
  2. Multiply each atom count by the atomic weight of the element.
  3. Add the results to get 239.06 g/mol.

Elemental composition of galena

ElementAtomsAtomic weightMass (g/mol)Mass %
Pb Lead120720786.589%
S Sulfur132.0632.0613.411%

Grams and moles of galena

AmountEquals
1 g0.0041831 mol
10 g0.041831 mol
100 g0.41831 mol
0.1 mol23.906 g
1 mol239.06 g
1 g, in particles2.5191 × 10^21