Molar Mass of N2O4 (Dinitrogen Tetroxide)

Molar Mass Calculator

What is the molar mass of N₂O₄?

Answer

M(N₂O₄) =

92.010 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
Nnitrogen	2	14.007	28.014 w ≈ 30.45%	≈ 30.45%
Ooxygen	4	15.999	63.996 w ≈ 69.55%	≈ 69.55%
Σ = 92.010 g/mol w = 100%				100%

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

Mass fractions of the elements

O 69.55%

N 30.45%

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Molar masses of substances nearby

Formula	M, g/mol
NaClO₂ (sodium chlorite)	90.44
NiS (nickel(II) sulfide)	90.75
Zr (zirconium)	91.222
N₂O₄ (dinitrogen tetroxide)	92.010
C₃H₈O₃ (glycerol)	92.094
C₇H₈ (toluene)	92.141
Ni(OH)₂ (nickel(II) hydroxide)	92.707

FAQ

What is the molar mass of N2O4?

M(N₂O₄) = 92.010 g/mol

How to calculate the molar mass of N₂O₄?

Add up the atomic weights of all the atoms in the formula: 2 × 14.007 + 4 × 15.999 = 92.010 g/mol.

How many grams are in 2 moles of N₂O₄?

m = n × M = 2 mol × 92.010 g/mol = 184.020 g.

See Also