Molar Mass of C11H12N2O2 (Tryptophan)

Molar Mass Calculator

What is the molar mass of C₁₁H₁₂N₂O₂?

Answer

M(C₁₁H₁₂N₂O₂) =

204.229 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	11	12.011	132.121 w ≈ 64.69%	≈ 64.69%
Hhydrogen	12	1.0080	12.0960 w ≈ 5.92%	≈ 5.92%
Nnitrogen	2	14.007	28.014 w ≈ 13.72%	≈ 13.72%
Ooxygen	2	15.999	31.998 w ≈ 15.67%	≈ 15.67%
Σ = 204.229 g/mol w = 100%				100%

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

Mass fractions of the elements

C 64.69%

O 15.67%N 13.72%H 5.92%

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Molar masses of substances nearby

Formula	M, g/mol
Hg (mercury)	200.59
Na₂B₄O₇	201.21
C₁₀H₁₈O₄ (sebacic acid)	202.250
C₁₁H₁₂N₂O₂ (tryptophan)	204.229
Tl (thallium)	204.38
Ca(ClO₃)₂ (calcium chlorate)	206.97
Pb (lead)	207.2

FAQ

What is the molar mass of C11H12N2O2?

M(C₁₁H₁₂N₂O₂) = 204.229 g/mol

How to calculate the molar mass of C₁₁H₁₂N₂O₂?

Add up the atomic weights of all the atoms in the formula: 11 × 12.011 + 12 × 1.0080 + 2 × 14.007 + 2 × 15.999 = 204.229 g/mol.

How many grams are in 2 moles of C₁₁H₁₂N₂O₂?

m = n × M = 2 mol × 204.229 g/mol = 408.458 g.

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