Molar mass of nitrogen
28.02 g/molN₂
Molar mass
Molar mass. The mass of one mole in grams: add the atomic mass of every atom in the formula. Masses. Standard atomic masses to two decimals, hydrogen 1.008, every element to uranium. Typing. Ca(OH)2, (NH4)2SO4, CuSO4.5H2O and K4[Fe(CN)6] all work.
28.02g/mol
N₂
- N× 2100.00%
- N2 × 14.0128.02
- Total28.02 g/mol
Grams, moles, particles
Type any one. The other three fill in. Moles. From grams, particles or litres they are rounded to 3 significant figures first, as in a worked answer. 1 mol = 6.022 × 10²³ particles = 22.7 L of gas at STP (1 bar); 22.4 L at 1 atm.
1 mol of N₂ = 6.022 × 10²³ molecules
At 1 atm (older value): 22.40 L
Add up the atoms
- Nitrogen: 2 × 14.01 = 28.02 g
- Molar mass = 2 × 14.01 = 28.02 g/mol
Share of the mass
- Nitrogen100.00%
1 mol of N₂ = 28.02 g
1 g of N₂ = 0.03569 mol
Nitrogen is made of N₂ molecules, so 1 mol of it is 28.02 g. A mole of nitrogen atoms, N, is 14.01 g.
Molar mass of nitrogen: quick answers
What is the molar mass of nitrogen?
The molar mass of nitrogen, N₂, is 28.02 g/mol. So 1 mol of nitrogen has a mass of 28.02 g.
How do you calculate the molar mass of N₂?
Add the atomic masses of all the atoms: 2 × 14.01 = 28.02 g/mol.
How many moles are in 100 g of nitrogen?
Divide the mass by the molar mass: 100 ÷ 28.02 = 3.57 mol of N₂.