Molar and molecular weight of BaSO3

• Molecular formula: BaSO3 or BaO3S
• Relative molecular weight of BaSO3: 217.3902
• Molar mass of BaSO3: 217.3902 g/mol (0.21739 kg/mol)

Calculation of the relative molecular and molar mass of BaSO3

• Mr[BaSO3] = Ar[Ba] + Ar[O] * 3 + Ar[S] = 137.327 + 15.9994 * 3 + 32.065 = 217.3902
• Molar mass (kg/mol) = Mr[BaSO3] : 1000 = 217.3902 : 1000 = 0.21739 kg/mol

BaSO3: percent composition by element

• Barium (Ba) = 137.327 : 217.3902 * 100 = 63.171 %
• Oxygen (O) = 47.9982 : 217.3902 * 100 = 22.079 %
• Sulfur (S) = 32.065 : 217.3902 * 100 = 14.75 %

Molar mass calculator