Molar Mass of C5H11NO2 (L-valine)

Molar Mass Calculator

What is the molar mass of C₅H₁₁NO₂?

Answer

M(C₅H₁₁NO₂) =

117.148 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	5	12.011	60.055 w ≈ 51.26%	≈ 51.26%
Hhydrogen	11	1.0080	11.0880 w ≈ 9.46%	≈ 9.46%
Nnitrogen	1	14.007	14.007 w ≈ 11.96%	≈ 11.96%
Ooxygen	2	15.999	31.998 w ≈ 27.31%	≈ 27.31%
Σ = 117.148 g/mol w = 100%				100%

Each fraction is rounded on its own, so the printed ones add up to 99.99%; unrounded, they make exactly 100%.

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

Mass fractions of the elements

C 51.26%

O 27.31%N 11.96%H 9.46%

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Molar masses of substances nearby

Formula	M, g/mol
C₅H₉NO₂ (DL-proline)	115.132
C₄H₄O₄ (fumaric acid)	116.072
CH₃CH₂CH₂CO₂CH₂CH₃ (ethyl butyrate)	116.160
C₅H₁₁NO₂ (L-valine)	117.148
C₈H₇N (1H-indole)	117.151
NH₄ClO₄ (ammonium perchlorate)	117.49
H₂CrO₄ (chromic acid)	118.008

FAQ

What is the molar mass of C5H11NO2?

M(C₅H₁₁NO₂) = 117.148 g/mol

How to calculate the molar mass of C₅H₁₁NO₂?

Add up the atomic weights of all the atoms in the formula: 5 × 12.011 + 11 × 1.0080 + 14.007 + 2 × 15.999 = 117.148 g/mol.

How many grams are in 2 moles of C₅H₁₁NO₂?

m = n × M = 2 mol × 117.148 g/mol = 234.296 g.

See Also