Molar and molecular weight of Se2Cl2

• Relative molecular weight of Se2Cl2: 228.826
• Molar mass of Se2Cl2: 228.826 g/mol (0.22883 kg/mol)

Calculation of the relative molecular and molar mass of Se2Cl2

• Mr[Se2Cl2] = Ar[Se] * 2 + Ar[Cl] * 2 = 78.96 * 2 + 35.453 * 2 = 228.826
• Molar mass (kg/mol) = Mr[Se2Cl2] : 1000 = 228.826 : 1000 = 0.22883 kg/mol

Se2Cl2: percent composition by element

• Selenium (Se) = 157.92 : 228.826 * 100 = 69.013 %
• Chlorine (Cl) = 70.906 : 228.826 * 100 = 30.987 %

Molar mass calculator