Molar and molecular weight of B2H6

• Molecular formula: B2H6 or H6B2
• Relative molecular weight of B2H6: 27.66964
• Molar mass of B2H6: 27.66964 g/mol (0.02767 kg/mol)

Calculation of the relative molecular and molar mass of B2H6

• Mr[B2H6] = Ar[H] * 6 + Ar[B] * 2 = 1.00794 * 6 + 10.811 * 2 = 27.66964
• Molar mass (kg/mol) = Mr[B2H6] : 1000 = 27.66964 : 1000 = 0.02767 kg/mol

B2H6: percent composition by element

• Hydrogen (H) = 6.04764 : 27.66964 * 100 = 21.857 %
• Boron (B) = 21.622 : 27.66964 * 100 = 78.143 %

Molar mass calculator