Molar and molecular weight of C5H8O2

• Molecular formula: C5H8O2 or CH3COCH2COCH3
• Relative molecular weight of C5H8O2: 100.11582
• Molar mass of C5H8O2: 100.11582 g/mol (0.10012 kg/mol)

Calculation of the relative molecular and molar mass of C5H8O2

• Mr[C5H8O2] = Ar[C] * 5 + Ar[H] * 8 + Ar[O] * 2 = 12.0107 * 5 + 1.00794 * 8 + 15.9994 * 2 = 100.11582
• Molar mass (kg/mol) = Mr[C5H8O2] : 1000 = 100.11582 : 1000 = 0.10012 kg/mol

C5H8O2: percent composition by element

• Carbon (C) = 60.0535 : 100.11582 * 100 = 59.984 %
• Hydrogen (H) = 8.06352 : 100.11582 * 100 = 8.054 %
• Oxygen (O) = 31.9988 : 100.11582 * 100 = 31.962 %

Molar mass calculator