Molar mass

Molar Mass of Sodium Carbonate Decahydrate

The molar mass of sodium carbonate decahydrate (Na2CO3·10H2O) is 286.138 g/mol.

Sodium Carbonate Decahydrate at a glance

PropertyValue
Molar mass286.138 g/mol
Molecular weight286.138 u
Chemical formulaNa2CO3·10H2O
Monoisotopic mass286.069929 u
CAS number6132-02-1
PubChem CID151402

How to calculate the molar mass of sodium carbonate decahydrate

2 × 22.99 + 1 × 12.011 + 13 × 15.999 + 20 × 1.008 = 286.138 g/mol

  1. Count the atoms in Na2CO3·10H2O: Na 2, C 1, O 13, H 20.
  2. Multiply each atom count by the atomic weight of the element.
  3. Add the results to get 286.138 g/mol.

Elemental composition of sodium carbonate decahydrate

ElementAtomsAtomic weightMass (g/mol)Mass %
Na Sodium222.9945.9816.069%
C Carbon112.01112.0114.1976%
O Oxygen1315.999207.98772.688%
H Hydrogen201.00820.167.0456%

Grams and moles of sodium carbonate decahydrate

AmountEquals
1 g0.0034948 mol
10 g0.034948 mol
100 g0.34948 mol
0.1 mol28.614 g
1 mol286.14 g
1 g, in particles2.1046 × 10^21