Molar Mass of Methane
CH4 — 16.043 g/mol, worked out element by element.
Molar mass of Methane, CH₄
16.043 g/mol
Molecular weight 16.043 · 5 atoms per formula unit
Also known as: ch4, natural gas.
The simplest hydrocarbon and the default fuel in combustion problems.
How 16.043 g/mol is worked out
| Element | Atoms | Atomic mass | Mass | % of total |
|---|---|---|---|---|
| Carbon | 1 | 12.011 | 12.011 | 74.87% |
| Hydrogen | 4 | 1.008 | 4.032 | 25.13% |
| Total | 5 | 16.043 | 100% |
M = 1 × 12.011 + 4 × 1.008 = 16.043 g/mol
Grams to moles for Methane
| Mass | Moles | Formula units |
|---|---|---|
| 1 g | 0.0623 mol | 3.754 × 10^22 |
| 10 g | 0.6233 mol | 3.754 × 10^23 |
| 25 g | 1.5583 mol | 9.384 × 10^23 |
| 50 g | 3.1166 mol | 1.877 × 10^24 |
| 100 g | 6.2332 mol | 3.754 × 10^24 |
| 250 g | 15.5831 mol | 9.384 × 10^24 |
| 16.043 g | 1 mol | 6.022 × 10^23 |
For any other amount, use the molar mass calculator, or the molarity calculator to make up a solution of a given concentration.
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Frequently Asked Questions
What is the molar mass of Methane?
The molar mass of Methane (CH4) is 16.043 g/mol. That is the sum of the standard atomic weights of all 5 atoms in one formula unit: 1 × 12.011 + 4 × 1.008 = 16.043.
What is the molecular weight of Methane?
16.043 — the same number as the molar mass, but as a dimensionless ratio rather than in g/mol. The two terms describe the same arithmetic, so a molecular weight of 16.04 and a molar mass of 16.04 g/mol are the same answer.
How many moles are in 100 g of Methane?
100 ÷ 16.043 = 6.2332 mol. To convert any mass to moles, divide by the molar mass; to go the other way, multiply.
What is the percent composition of Methane?
By mass, Methane is 74.87% carbon, 25.13% hydrogen. Each element's share is its total mass in the formula divided by 16.043.
How many atoms are in one formula unit of Methane?
5: 1 carbon, 4 hydrogen. One mole contains 6.02214076 × 10²³ formula units, so a mole of Methane contains 5 × 6.022 × 10²³ atoms in total.