Molar and molecular weight of C8H7NO

• Molecular formula: C8H7NO or CH3OC6H4CN
• Relative molecular weight of C8H7NO: 133.14728
• Molar mass of C8H7NO: 133.14728 g/mol (0.13315 kg/mol)

Calculation of the relative molecular and molar mass of C8H7NO

• Mr[C8H7NO] = Ar[C] * 8 + Ar[H] * 7 + Ar[N] + Ar[O] = 12.0107 * 8 + 1.00794 * 7 + 14.0067 + 15.9994 = 133.14728
• Molar mass (kg/mol) = Mr[C8H7NO] : 1000 = 133.14728 : 1000 = 0.13315 kg/mol

C8H7NO: percent composition by element

• Carbon (C) = 96.0856 : 133.14728 * 100 = 72.165 %
• Hydrogen (H) = 7.05558 : 133.14728 * 100 = 5.299 %
• Nitrogen (N) = 14.0067 : 133.14728 * 100 = 10.52 %
• Oxygen (O) = 15.9994 : 133.14728 * 100 = 12.016 %

Molar mass calculator