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Molar massNitrogen
Molar mass of N2 (Nitrogen)
The molar mass of N2 is 28.01 g/mol.
About 78% of air; very unreactive because of its triple bond.
Step-by-step calculation
Add up the atomic masses of every atom in the formula:
2 × 14.007 = 28.01 g/mol
| Element | Atoms | Atomic mass (u) | Subtotal (g/mol) | % by mass |
|---|---|---|---|---|
| Nitrogen (N) | 2 | 14.007 | 28.014 | 100.00% |
| Molar mass of N2 | 28.01 g/mol | |||
Moles to grams for N2
Multiply the number of moles by 28.01 g/mol to get the mass, and divide a mass by 28.01 g/mol to get the moles.
| Amount (mol) | Mass (g) | Mass (g) | Amount (mol) |
|---|---|---|---|
| 0.1 mol | 2.80 g | 1 g | 0.0357 mol |
| 0.25 mol | 7.00 g | 5 g | 0.1785 mol |
| 0.5 mol | 14.01 g | 10 g | 0.3570 mol |
| 1 mol | 28.01 g | 50 g | 1.7848 mol |
| 2 mol | 56.03 g | 100 g | 3.5696 mol |
| 5 mol | 140.07 g | 500 g | 17.8482 mol |
Frequently asked questions
What is the molar mass of N2?
The molar mass of N₂ (nitrogen) is 28.01 g/mol, so one mole of nitrogen weighs 28.01 grams.
How do you calculate the molar mass of N2?
Multiply each element’s atomic mass by the number of atoms in the formula and add the results: 2 × 14.007 = 28.01 g/mol.
What percentage of N2 is nitrogen?
Nitrogen makes up 100.00% of the mass of N₂.
How many grams are in one mole of N2?
One mole of N₂ has a mass of 28.01 grams, and contains 6.022 × 10²³ formula units.