Molar Mass of C5H11NO2S (DL-methionine)
Molar Mass Calculator
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.
| Element | Atoms, n | Atomic weight, A | n × A, g/mol Mass fraction, w | |
|---|---|---|---|---|
| Ccarbon | 5 | 12.011 | 60.055 w ≈ 40.25% | ≈ 40.25% |
| Hhydrogen | 11 | 1.0080 | 11.0880 w ≈ 7.43% | ≈ 7.43% |
| Nnitrogen | 1 | 14.007 | 14.007 w ≈ 9.39% | ≈ 9.39% |
| Ooxygen | 2 | 15.999 | 31.998 w ≈ 21.45% | ≈ 21.45% |
| Ssulfur | 1 | 32.06 | 32.06 w ≈ 21.49% | ≈ 21.49% |
| Σ = 149.208 ≈ 149.21 g/mol w = 100% | 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)
C 40.25%
S 21.49%O 21.45%N 9.39%H 7.43%
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