Molar Mass of C6H5NO2 (Nitrobenzene)

Molar Mass Calculator

What is the molar mass of C₆H₅NO₂?

Answer

M(C₆H₅NO₂) =

123.111 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
Ccarbon	6	12.011	72.066 w ≈ 58.54%	≈ 58.54%
Hhydrogen	5	1.0080	5.0400 w ≈ 4.09%	≈ 4.09%
Nnitrogen	1	14.007	14.007 w ≈ 11.38%	≈ 11.38%
Ooxygen	2	15.999	31.998 w ≈ 25.99%	≈ 25.99%
Σ = 123.111 g/mol w = 100%				100%

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

Mass fractions of the elements

C 58.54%

O 25.99%N 11.38%H 4.09%

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Molar masses of substances nearby

Formula	M, g/mol
C₆H₅COOH (benzoic acid)	122.123
NaClO₄ (sodium perchlorate)	122.44
KClO₃	122.55
C₆H₅NO₂ (nitrobenzene)	123.111
CuCO₃ (copper(II) carbonate)	123.554
P₄ (white phosphorus)	123.896
C₇H₈O₂ (guaiacol)	124.139

FAQ

What is the molar mass of C6H5NO2?

M(C₆H₅NO₂) = 123.111 g/mol

How to calculate the molar mass of C₆H₅NO₂?

Add up the atomic weights of all the atoms in the formula: 6 × 12.011 + 5 × 1.0080 + 14.007 + 2 × 15.999 = 123.111 g/mol.

How many grams are in 2 moles of C₆H₅NO₂?

m = n × M = 2 mol × 123.111 g/mol = 246.222 g.

See Also