Molar and molecular weight of Ar

• Relative molecular weight of Ar: 39.948
• Molar mass of Ar: 39.948 g/mol (0.03995 kg/mol)

Calculation of the relative molecular and molar mass of Ar

• Mr[Ar] = Ar[Ar] = 39.948 = 39.948
• Molar mass (kg/mol) = Mr[Ar] : 1000 = 39.948 : 1000 = 0.03995 kg/mol

Molar mass calculator