Molar mass of ethylene (C2H4)

The molar mass of ethylene (C2H4) is 28.054 g/mol.

ethene

Step-by-step calculation

ElementAtomsAtomic massSubtotal
Carbon × 2 12.011 = 24.022
Hydrogen × 4 1.008 = 4.032
Total28.054 g/mol

Percent composition by element

  • Carbon 85.63%
  • Hydrogen 14.37%

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FAQ

What is the molar mass of C2H4?

The molar mass of ethylene (C2H4) is 28.054 g/mol.

How do you calculate the molar mass of C2H4?

Multiply the atomic mass of each element by the number of its atoms in C2H4, then add the results: 2 × 12.011 (C) + 4 × 1.008 (H) = 28.054 g/mol.

What percentage of C2H4 is Carbon?

Carbon makes up 85.63% of the mass of ethylene (C2H4).