Molar Mass of HN3 (Hydrogen Azide)

Molar Mass Calculator

What is the molar mass of HN₃?

Answer

M(HN₃) =

43.029 g/mol

Atomic weights: IUPAC standard values (CIAAW, 2024).

Contribution of each element
Element	Atoms, n	Atomic weight, A	n × A, g/mol Mass fraction, w	Mass fraction, w
Hhydrogen	1	1.0080	1.0080 w ≈ 2.34%	≈ 2.34%
Nnitrogen	3	14.007	42.021 w ≈ 97.66%	≈ 97.66%
Σ = 43.029 g/mol w = 100%				100%

Atomic weights: CIAAW, Abridged Standard Atomic Weights (2024)

Mass fractions of the elements

N 97.66%

H 2.34%

Related Calculations

See Also

Liters to Kilograms - How many kilograms are in a liter of water, honey, gasoline, sand and other substances — by density
Grams to Kg - Convert Grams to Kilograms
Percentage Calculator: Fraction to Percent - What percentage one number is of another? Convert fraction into a percentage
Scientific Calculator with Memory & History - Free Engineering Calculator Online with Memory Function, Operation History, Logarithms & Trigonometry. Similar to ti-83, ti-84, ti-89

Recalculate with different values ↑

Molar masses of substances nearby

Formula	M, g/mol
NaF (sodium fluoride)	41.988
C₃H₆ (propylene)	42.081
LiCl (lithium chloride)	42.39
HN₃ (hydrogen azide)	43.029
CO₂ (carbon dioxide)	44.009
N₂O (nitrous oxide)	44.013
CH₃COH (acetaldehyde)	44.053

FAQ

What is the molar mass of HN3?

M(HN₃) = 43.029 g/mol

How to calculate the molar mass of HN₃?

Add up the atomic weights of all the atoms in the formula: 1.0080 + 3 × 14.007 = 43.029 g/mol.

How many grams are in 2 moles of HN₃?

m = n × M = 2 mol × 43.029 g/mol = 86.058 g.

See Also