Molar and molecular weight of BaSO4

• Molecular formula: BaSO4 or BaO4S
• Relative molecular weight of BaSO4: 233.3896
• Molar mass of BaSO4: 233.3896 g/mol (0.23339 kg/mol)

Calculation of the relative molecular and molar mass of BaSO4

• Mr[BaSO4] = Ar[Ba] + Ar[O] * 4 + Ar[S] = 137.327 + 15.9994 * 4 + 32.065 = 233.3896
• Molar mass (kg/mol) = Mr[BaSO4] : 1000 = 233.3896 : 1000 = 0.23339 kg/mol

BaSO4: percent composition by element

• Barium (Ba) = 137.327 : 233.3896 * 100 = 58.84 %
• Oxygen (O) = 63.9976 : 233.3896 * 100 = 27.421 %
• Sulfur (S) = 32.065 : 233.3896 * 100 = 13.739 %

Molar mass calculator