Molar Mass of C5H11NO2S (DL-methionine)

Molar Mass Calculator
Chemical formula Write symbols with a capital letter: CoCl2 is cobalt chloride, COCl2 is phosgene. A hydrate takes a dot: CuSO4·5H2O or CuSO4.5H2O

What is the molar mass of C5H11NO2S?

Answer

M(C5H11NO2S) ≈
149.21 g/mol

Atomic weights: IUPAC standard values (CIAAW, 2024); the sum is rounded to the decimal places of the least precise one — S: 32.06.

Contribution of each element
Element Atoms, n Atomic weight, A n × A, g/mol Mass fraction, w
Ccarbon512.01160.055 w ≈ 40.25%
Hhydrogen111.008011.0880 w ≈ 7.43%
Nnitrogen114.00714.007 w ≈ 9.39%
Ooxygen215.99931.998 w ≈ 21.45%
Ssulfur132.0632.06 w ≈ 21.49%
Σ = 149.208 ≈ 149.21 g/mol w = 100%

Each fraction is rounded on its own, so the printed ones add up to 100.01%; unrounded, they make exactly 100%.

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

Mass fractions of the elements

S 21.49%O 21.45%N 9.39%H 7.43%

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Recalculate with different values ↑

Molar masses of substances nearby

FormulaM, g/mol
C₈H₄O₃ (phthalic anhydride)148.117
C₉H₈O₂ ((E)-cinnamic acid)148.161
Mg(NO₃)₂ (magnesium nitrate)148.313
C₅H₁₁NO₂S (DL-methionine)149.21
AgOCN (silver cyanate)149.89
NaI (sodium iodide)149.89
CsOH (caesium hydroxide)149.92

FAQ

What is the molar mass of C5H11NO2S?

M(C₅H₁₁NO₂S) ≈ 149.21 g/mol

How to calculate the molar mass of C₅H₁₁NO₂S?

Add up the atomic weights of all the atoms in the formula: 5 × 12.011 + 11 × 1.0080 + 14.007 + 2 × 15.999 + 32.06 = 149.208 ≈ 149.21 g/mol.

How many grams are in 2 moles of C₅H₁₁NO₂S?

m = n × M = 2 mol × 149.21 g/mol = 298.42 g.

See Also