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Enter a chemical formula to get its molar mass and percent composition by element. Handles brackets and hydrates, using IUPAC standard atomic weights.
Also covers: Molar mass calculator Β· Formula mass Β· Percent composition
Case matters: Co is cobalt, CO is carbon monoxide. Brackets and hydrates (CuSO4Β·5H2O or CuSO4*5H2O) work.
Molar mass of C6H12O6
180.156 g/mol
24 atoms per formula unit Β· 3 elements
Composition
| Element | Atoms | Atomic mass | Mass | Mass % |
|---|---|---|---|---|
| C Carbon | 6 | 12.011 | 72.066 | 40.002% |
| H Hydrogen | 12 | 1.008 | 12.096 | 6.7142% |
| O Oxygen | 6 | 15.999 | 95.994 | 53.284% |
Standard atomic weights from the PubChem periodic table (NIH), which follows IUPAC. Radioactive elements without a standard weight use the mass of a representative isotope.
Like H2O, Ca(OH)2 or CuSO4Β·5H2O. Case matters: Co is cobalt, CO is carbon monoxide.
With a table of each element's count, mass, and share of the total.
Numerically they're the same: the molar mass in g/mol equals the molecular weight in daltons (atomic mass units).
Use Β· or * between the parts: CuSO4Β·5H2O or CuSO4*5H2O.
The PubChem periodic table (US National Institutes of Health), which follows IUPAC's standard atomic weights.
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