Molar mass of methane (CH4)

The molar mass of methane (CH4) is 16.043 g/mol.

Step-by-step calculation

ElementAtomsAtomic massSubtotal
Carbon × 1 12.011 = 12.011
Hydrogen × 4 1.008 = 4.032
Total16.043 g/mol

Percent composition by element

  • Carbon 74.87%
  • Hydrogen 25.13%

Methane facts

  • Methane is the simplest hydrocarbon, a colorless and odorless gas made of one carbon atom bonded to four hydrogen atoms.
  • It is the main component of natural gas and is also released by wetlands, landfills, rice paddies, and the digestive systems of cattle.
  • Methane traps about 80 times more heat than the same mass of carbon dioxide over a 20-year period, making it a powerful greenhouse gas.

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FAQ

What is the molar mass of CH4?

The molar mass of methane (CH4) is 16.043 g/mol.

How do you calculate the molar mass of CH4?

Multiply the atomic mass of each element by the number of its atoms in CH4, then add the results: 1 × 12.011 (C) + 4 × 1.008 (H) = 16.043 g/mol.

What percentage of CH4 is Carbon?

Carbon makes up 74.87% of the mass of methane (CH4).