Molar and molecular weight of Na2CO3

• Molecular formula: Na2CO3 or CNa2O3
• Relative molecular weight of Na2CO3: 105.98843856
• Molar mass of Na2CO3: 105.98843856 g/mol (0.10599 kg/mol)

Calculation of the relative molecular and molar mass of Na2CO3

• Mr[Na2CO3] = Ar[C] + Ar[Na] * 2 + Ar[O] * 3 = 12.0107 + 22.98976928 * 2 + 15.9994 * 3 = 105.98843856
• Molar mass (kg/mol) = Mr[Na2CO3] : 1000 = 105.98843856 : 1000 = 0.10599 kg/mol

Na2CO3: percent composition by element

• Carbon (C) = 12.0107 : 105.98843856 * 100 = 11.332 %
• Sodium (Na) = 45.97953856 : 105.98843856 * 100 = 43.382 %
• Oxygen (O) = 47.9982 : 105.98843856 * 100 = 45.286 %

Molar mass calculator