Molar and molecular weight of AuBr

• Relative molecular weight of AuBr: 276.870569
• Molar mass of AuBr: 276.870569 g/mol (0.27687 kg/mol)

Calculation of the relative molecular and molar mass of AuBr

• Mr[AuBr] = Ar[Au] + Ar[Br] = 196.966569 + 79.904 = 276.870569
• Molar mass (kg/mol) = Mr[AuBr] : 1000 = 276.870569 : 1000 = 0.27687 kg/mol

AuBr: percent composition by element

• Gold (Au) = 196.966569 : 276.870569 * 100 = 71.14 %
• Bromine (Br) = 79.904 : 276.870569 * 100 = 28.86 %

Molar mass calculator