CO
4 compounds have this formula on CompoundList.
- Molar mass
- 28.01g/mol
- Monoisotopic mass
- 28.9983Da
- Atoms
- 2
- Elements
- 2
- Rings plus double bonds
- 2
The formula CO describes a molecule made of 1 carbon atom and 1 oxygen atom. It is written in Hill notation: carbon first, then hydrogen, then the other elements in alphabetical order. The formula tells you which atoms are present, not how they are connected, which is why several different chemicals can share it.
Elemental composition
- C Carbon × 142.88%12.011 × 1 = 12.011 g/mol
- O Oxygen × 157.12%15.999 × 1 = 15.999 g/mol
Compounds with the formula CO
Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.
Showing 1 to 4 of 4 compounds
Frequently asked questions
What is the molar mass of CO?
The molar mass of CO is 28.01 g/mol, calculated from standard atomic weights for 1 carbon atom and 1 oxygen atom. The monoisotopic mass is 28.9983 Da.
How many compounds have the formula CO?
CompoundList lists 4 compounds with the molecular formula CO, including Carbon monoxide, Carbon-13C monoxide, Carbon monoxide c 11. Compounds that share a formula are isomers. They contain the same atoms arranged differently, so their properties, uses and prices can be very different.
What is the degree of unsaturation of CO?
CO has a degree of unsaturation of 2. That is the total number of rings and pi bonds (a double bond counts as one, a triple bond as two) in any structure with this formula.