Molar and molecular weight of B2Re

• Relative molecular weight of B2Re: 207.829
• Molar mass of B2Re: 207.829 g/mol (0.20783 kg/mol)

Calculation of the relative molecular and molar mass of B2Re

• Mr[B2Re] = Ar[B] * 2 + Ar[Re] = 10.811 * 2 + 186.207 = 207.829
• Molar mass (kg/mol) = Mr[B2Re] : 1000 = 207.829 : 1000 = 0.20783 kg/mol

B2Re: percent composition by element

• Boron (B) = 21.622 : 207.829 * 100 = 10.404 %
• Rhenium (Re) = 186.207 : 207.829 * 100 = 89.596 %

Molar mass calculator