Molar and molecular weight of CH2O2

• Molecular formula: CH2O2 or HCOOH
• Relative molecular weight of CH2O2: 46.02538
• Molar mass of CH2O2: 46.02538 g/mol (0.04603 kg/mol)

Calculation of the relative molecular and molar mass of CH2O2

• Mr[CH2O2] = Ar[C] + Ar[H] * 2 + Ar[O] * 2 = 12.0107 + 1.00794 * 2 + 15.9994 * 2 = 46.02538
• Molar mass (kg/mol) = Mr[CH2O2] : 1000 = 46.02538 : 1000 = 0.04603 kg/mol

CH2O2: percent composition by element

• Carbon (C) = 12.0107 : 46.02538 * 100 = 26.096 %
• Hydrogen (H) = 2.01588 : 46.02538 * 100 = 4.38 %
• Oxygen (O) = 31.9988 : 46.02538 * 100 = 69.524 %

Molar mass calculator