Molar and molecular weight of Cl2O3

• Relative molecular weight of Cl2O3: 118.9042
• Molar mass of Cl2O3: 118.9042 g/mol (0.1189 kg/mol)

Calculation of the relative molecular and molar mass of Cl2O3

• Mr[Cl2O3] = Ar[Cl] * 2 + Ar[O] * 3 = 35.453 * 2 + 15.9994 * 3 = 118.9042
• Molar mass (kg/mol) = Mr[Cl2O3] : 1000 = 118.9042 : 1000 = 0.1189 kg/mol

Cl2O3: percent composition by element

• Chlorine (Cl) = 70.906 : 118.9042 * 100 = 59.633 %
• Oxygen (O) = 47.9982 : 118.9042 * 100 = 40.367 %

Molar mass calculator