Molar and molecular weight of Al2Se

• Relative molecular weight of Al2Se: 132.9230772
• Molar mass of Al2Se: 132.9230772 g/mol (0.13292 kg/mol)

Calculation of the relative molecular and molar mass of Al2Se

• Mr[Al2Se] = Ar[Al] * 2 + Ar[Se] = 26.9815386 * 2 + 78.96 = 132.9230772
• Molar mass (kg/mol) = Mr[Al2Se] : 1000 = 132.9230772 : 1000 = 0.13292 kg/mol

Al2Se: percent composition by element

• Aluminum (Al) = 53.9630772 : 132.9230772 * 100 = 40.597 %
• Selenium (Se) = 78.96 : 132.9230772 * 100 = 59.403 %

Molar mass calculator