Molar and molecular weight of C3H4

• Relative molecular weight of C3H4: 40.06386
• Molar mass of C3H4: 40.06386 g/mol (0.04006 kg/mol)

Calculation of the relative molecular and molar mass of C3H4

• Mr[C3H4] = Ar[C] * 3 + Ar[H] * 4 = 12.0107 * 3 + 1.00794 * 4 = 40.06386
• Molar mass (kg/mol) = Mr[C3H4] : 1000 = 40.06386 : 1000 = 0.04006 kg/mol

C3H4: percent composition by element

• Carbon (C) = 36.0321 : 40.06386 * 100 = 89.937 %
• Hydrogen (H) = 4.03176 : 40.06386 * 100 = 10.063 %

Molar mass calculator