Molar and molecular weight of YBr3

• Molecular formula: YBr3 or Br3Y
• Relative molecular weight of YBr3: 328.61785
• Molar mass of YBr3: 328.61785 g/mol (0.32862 kg/mol)

Calculation of the relative molecular and molar mass of YBr3

• Mr[YBr3] = Ar[Br] * 3 + Ar[Y] = 79.904 * 3 + 88.90585 = 328.61785
• Molar mass (kg/mol) = Mr[YBr3] : 1000 = 328.61785 : 1000 = 0.32862 kg/mol

YBr3: percent composition by element

• Bromine (Br) = 239.712 : 328.61785 * 100 = 72.946 %
• Yttrium (Y) = 88.90585 : 328.61785 * 100 = 27.054 %

Molar mass calculator