Molar and molecular weight of C8H16O

• Molecular formula: C8H16O or CH3(CH2)6CHO
• Relative molecular weight of C8H16O: 128.21204
• Molar mass of C8H16O: 128.21204 g/mol (0.12821 kg/mol)

Calculation of the relative molecular and molar mass of C8H16O

• Mr[C8H16O] = Ar[C] * 8 + Ar[H] * 16 + Ar[O] = 12.0107 * 8 + 1.00794 * 16 + 15.9994 = 128.21204
• Molar mass (kg/mol) = Mr[C8H16O] : 1000 = 128.21204 : 1000 = 0.12821 kg/mol

C8H16O: percent composition by element

• Carbon (C) = 96.0856 : 128.21204 * 100 = 74.943 %
• Hydrogen (H) = 16.12704 : 128.21204 * 100 = 12.578 %
• Oxygen (O) = 15.9994 : 128.21204 * 100 = 12.479 %

Molar mass calculator