Molar and molecular weight of C7H8O

• Molecular formula: C7H8O or C6H5CH2OH
• Relative molecular weight of C7H8O: 108.13782
• Molar mass of C7H8O: 108.13782 g/mol (0.10814 kg/mol)

Calculation of the relative molecular and molar mass of C7H8O

• Mr[C7H8O] = Ar[C] * 7 + Ar[H] * 8 + Ar[O] = 12.0107 * 7 + 1.00794 * 8 + 15.9994 = 108.13782
• Molar mass (kg/mol) = Mr[C7H8O] : 1000 = 108.13782 : 1000 = 0.10814 kg/mol

C7H8O: percent composition by element

• Carbon (C) = 84.0749 : 108.13782 * 100 = 77.748 %
• Hydrogen (H) = 8.06352 : 108.13782 * 100 = 7.457 %
• Oxygen (O) = 15.9994 : 108.13782 * 100 = 14.795 %

Molar mass calculator