Molar and molecular weight of C4H8

• Relative molecular weight of C4H8: 56.10632
• Molar mass of C4H8: 56.10632 g/mol (0.05611 kg/mol)

Calculation of the relative molecular and molar mass of C4H8

• Mr[C4H8] = Ar[C] * 4 + Ar[H] * 8 = 12.0107 * 4 + 1.00794 * 8 = 56.10632
• Molar mass (kg/mol) = Mr[C4H8] : 1000 = 56.10632 : 1000 = 0.05611 kg/mol

C4H8: percent composition by element

• Carbon (C) = 48.0428 : 56.10632 * 100 = 85.628 %
• Hydrogen (H) = 8.06352 : 56.10632 * 100 = 14.372 %

Molar mass calculator