Molar mass

Molar Mass of Octasulfur

The molar mass of octasulfur (S8) is 256.48 g/mol.

Octasulfur at a glance

PropertyValue
Molar mass256.48 g/mol
Molecular weight256.48 u
Chemical formulaS8
Monoisotopic mass255.776569 u
CAS number10544-50-0
PubChem CID66348

How to calculate the molar mass of octasulfur

8 × 32.06 = 256.48 g/mol

  1. Count the atoms in S8: S 8.
  2. Multiply each atom count by the atomic weight of the element.
  3. Add the results to get 256.48 g/mol.

Elemental composition of octasulfur

ElementAtomsAtomic weightMass (g/mol)Mass %
S Sulfur832.06256.48100%

Grams and moles of octasulfur

AmountEquals
1 g0.0038989 mol
10 g0.038989 mol
100 g0.38989 mol
0.1 mol25.648 g
1 mol256.48 g
1 g, in particles2.348 × 10^21