Molar and molecular weight of C7H6O2

• Molecular formula: C7H6O2 or C6H5COOH
• Relative molecular weight of C7H6O2: 122.12134
• Molar mass of C7H6O2: 122.12134 g/mol (0.12212 kg/mol)

Calculation of the relative molecular and molar mass of C7H6O2

• Mr[C7H6O2] = Ar[C] * 7 + Ar[H] * 6 + Ar[O] * 2 = 12.0107 * 7 + 1.00794 * 6 + 15.9994 * 2 = 122.12134
• Molar mass (kg/mol) = Mr[C7H6O2] : 1000 = 122.12134 : 1000 = 0.12212 kg/mol

C7H6O2: percent composition by element

• Carbon (C) = 84.0749 : 122.12134 * 100 = 68.845 %
• Hydrogen (H) = 6.04764 : 122.12134 * 100 = 4.952 %
• Oxygen (O) = 31.9988 : 122.12134 * 100 = 26.202 %

Molar mass calculator