Molar and molecular weight of C8H12

• Relative molecular weight of C8H12: 108.18088
• Molar mass of C8H12: 108.18088 g/mol (0.10818 kg/mol)

Calculation of the relative molecular and molar mass of C8H12

• Mr[C8H12] = Ar[C] * 8 + Ar[H] * 12 = 12.0107 * 8 + 1.00794 * 12 = 108.18088
• Molar mass (kg/mol) = Mr[C8H12] : 1000 = 108.18088 : 1000 = 0.10818 kg/mol

C8H12: percent composition by element

• Carbon (C) = 96.0856 : 108.18088 * 100 = 88.819 %
• Hydrogen (H) = 12.09528 : 108.18088 * 100 = 11.181 %

Molar mass calculator