Molar and molecular weight of AlCl3

• Relative molecular weight of AlCl3: 133.3405386
• Molar mass of AlCl3: 133.3405386 g/mol (0.13334 kg/mol)

Calculation of the relative molecular and molar mass of AlCl3

• Mr[AlCl3] = Ar[Al] + Ar[Cl] * 3 = 26.9815386 + 35.453 * 3 = 133.3405386
• Molar mass (kg/mol) = Mr[AlCl3] : 1000 = 133.3405386 : 1000 = 0.13334 kg/mol

AlCl3: percent composition by element

• Aluminum (Al) = 26.9815386 : 133.3405386 * 100 = 20.235 %
• Chlorine (Cl) = 106.359 : 133.3405386 * 100 = 79.765 %

Molar mass calculator