Molar mass

Molar Mass of Sodium Sulfate Decahydrate

The molar mass of sodium sulfate decahydrate (Na2SO4·10H2O) is 322.186 g/mol.

Sodium Sulfate Decahydrate at a glance

PropertyValue
Molar mass322.186 g/mol
Molecular weight322.186 u
Chemical formulaNa2SO4·10H2O
Monoisotopic mass322.036915 u
CAS number7727-73-3
PubChem CID62649

How to calculate the molar mass of sodium sulfate decahydrate

2 × 22.99 + 1 × 32.06 + 14 × 15.999 + 20 × 1.008 = 322.186 g/mol

  1. Count the atoms in Na2SO4·10H2O: Na 2, S 1, O 14, H 20.
  2. Multiply each atom count by the atomic weight of the element.
  3. Add the results to get 322.186 g/mol.

Elemental composition of sodium sulfate decahydrate

ElementAtomsAtomic weightMass (g/mol)Mass %
Na Sodium222.9945.9814.271%
S Sulfur132.0632.069.9508%
O Oxygen1415.999223.98669.521%
H Hydrogen201.00820.166.2573%

Grams and moles of sodium sulfate decahydrate

AmountEquals
1 g0.0031038 mol
10 g0.031038 mol
100 g0.31038 mol
0.1 mol32.219 g
1 mol322.19 g
1 g, in particles1.8692 × 10^21