Molar and molecular weight of AsCl3

• Relative molecular weight of AsCl3: 181.2806
• Molar mass of AsCl3: 181.2806 g/mol (0.18128 kg/mol)

Calculation of the relative molecular and molar mass of AsCl3

• Mr[AsCl3] = Ar[As] + Ar[Cl] * 3 = 74.9216 + 35.453 * 3 = 181.2806
• Molar mass (kg/mol) = Mr[AsCl3] : 1000 = 181.2806 : 1000 = 0.18128 kg/mol

AsCl3: percent composition by element

• Arsenic (As) = 74.9216 : 181.2806 * 100 = 41.329 %
• Chlorine (Cl) = 106.359 : 181.2806 * 100 = 58.671 %

Molar mass calculator