Molar and molecular weight of H2CO3

• Relative molecular weight of H2CO3: 62.02478
• Molar mass of H2CO3: 62.02478 g/mol (0.06202 kg/mol)

Calculation of the relative molecular and molar mass of H2CO3

• Mr[H2CO3] = Ar[H] * 2 + Ar[C] + Ar[O] * 3 = 1.00794 * 2 + 12.0107 + 15.9994 * 3 = 62.02478
• Molar mass (kg/mol) = Mr[H2CO3] : 1000 = 62.02478 : 1000 = 0.06202 kg/mol

H2CO3: percent composition by element

• Hydrogen (H) = 2.01588 : 62.02478 * 100 = 3.25 %
• Carbon (C) = 12.0107 : 62.02478 * 100 = 19.364 %
• Oxygen (O) = 47.9982 : 62.02478 * 100 = 77.386 %

Molar mass calculator