Molar Mass of Carbon monoxide
CO — 28.010 g/mol, worked out element by element.
Molar mass of Carbon monoxide, CO
28.010 g/mol
Molecular weight 28.010 · 2 atoms per formula unit
Also known as: co.
Formed when combustion runs short of oxygen; the reason incomplete combustion is dangerous rather than merely inefficient.
How 28.010 g/mol is worked out
| Element | Atoms | Atomic mass | Mass | % of total |
|---|---|---|---|---|
| Oxygen | 1 | 15.999 | 15.999 | 57.12% |
| Carbon | 1 | 12.011 | 12.011 | 42.88% |
| Total | 2 | 28.010 | 100% |
M = 1 × 15.999 + 1 × 12.011 = 28.010 g/mol
Grams to moles for Carbon monoxide
| Mass | Moles | Formula units |
|---|---|---|
| 1 g | 0.0357 mol | 2.150 × 10^22 |
| 10 g | 0.3570 mol | 2.150 × 10^23 |
| 25 g | 0.8925 mol | 5.375 × 10^23 |
| 50 g | 1.7851 mol | 1.075 × 10^24 |
| 100 g | 3.5702 mol | 2.150 × 10^24 |
| 250 g | 8.9254 mol | 5.375 × 10^24 |
| 28.010 g | 1 mol | 6.022 × 10^23 |
For any other amount, use the molar mass calculator, or the molarity calculator to make up a solution of a given concentration.
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Frequently Asked Questions
What is the molar mass of Carbon monoxide?
The molar mass of Carbon monoxide (CO) is 28.010 g/mol. That is the sum of the standard atomic weights of all 2 atoms in one formula unit: 1 × 15.999 + 1 × 12.011 = 28.010.
What is the molecular weight of Carbon monoxide?
28.010 — the same number as the molar mass, but as a dimensionless ratio rather than in g/mol. The two terms describe the same arithmetic, so a molecular weight of 28.01 and a molar mass of 28.01 g/mol are the same answer.
How many moles are in 100 g of Carbon monoxide?
100 ÷ 28.010 = 3.5702 mol. To convert any mass to moles, divide by the molar mass; to go the other way, multiply.
What is the percent composition of Carbon monoxide?
By mass, Carbon monoxide is 57.12% oxygen, 42.88% carbon. Each element's share is its total mass in the formula divided by 28.010.
How many atoms are in one formula unit of Carbon monoxide?
2: 1 oxygen, 1 carbon. One mole contains 6.02214076 × 10²³ formula units, so a mole of Carbon monoxide contains 2 × 6.022 × 10²³ atoms in total.