Molar Mass of CO2 (Carbon Dioxide)
Molar Mass Calculator
What is the molar mass of CO2?
Answer
M(CO2) =
44.009 g/mol
Atomic weights: IUPAC standard values (CIAAW, 2024).
| Element | Atoms, n | Atomic weight, A | n × A, g/mol Mass fraction, w | |
|---|---|---|---|---|
| Ccarbon | 1 | 12.011 | 12.011 w ≈ 27.29% | ≈ 27.29% |
| Ooxygen | 2 | 15.999 | 31.998 w ≈ 72.71% | ≈ 72.71% |
| Σ = 44.009 g/mol w = 100% | 100% | |||
Atomic weights: CIAAW, Abridged Standard Atomic Weights (2024)
O 72.71%
C 27.29%
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Molar masses of substances nearby
| Formula | M, g/mol |
|---|---|
| C₃H₆ (propylene) | 42.081 |
| LiCl (lithium chloride) | 42.39 |
| HN₃ (hydrogen azide) | 43.029 |
| CO₂ (carbon dioxide) | 44.009 |
| N₂O (nitrous oxide) | 44.013 |
| CH₃COH (acetaldehyde) | 44.053 |
| C₃H₈ (propane) | 44.097 |