Molar and molecular weight of O3W

• Molecular formula: O3W or WO3
• Relative molecular weight of O3W: 231.8382
• Molar mass of O3W: 231.8382 g/mol (0.23184 kg/mol)

Calculation of the relative molecular and molar mass of O3W

• Mr[O3W] = Ar[O] * 3 + Ar[W] = 15.9994 * 3 + 183.84 = 231.8382
• Molar mass (kg/mol) = Mr[O3W] : 1000 = 231.8382 : 1000 = 0.23184 kg/mol

O3W: percent composition by element

• Oxygen (O) = 47.9982 : 231.8382 * 100 = 20.703 %
• Tungsten (W) = 183.84 : 231.8382 * 100 = 79.297 %

Molar mass calculator