Molar Mass of Carbon Monoxide (CO)
Molar Mass of Carbon Monoxide is used in gas-law and stoichiometry questions that require clean mole-to-mass conversion. Molar Mass of CO is 28.01 g/mol, based on 2 element types, with O contributing the largest share.
For fast checks, use the molar mass calculator, verify element values in the periodic table, or explore more molar mass calculations.
Molar Mass of Carbon Monoxide is:
28.01 g/mol
Molar Mass of CO equals 28.01 g/mol, so 28.01 grams is one mole.
Element Breakdown Table
| Element | Count | Atomic mass | Calculation | Contribution |
|---|---|---|---|---|
| Carbon (C) | 1 | 12.01 | 1 x 12.01 | 12.01 g/mol |
| Oxygen (O) | 1 | 16.00 | 1 x 16.00 | 16.00 g/mol |
Final molar mass 12.010 + 16.000 | 28.01 g/mol | |||
Computing Molar Mass of Carbon Monoxide Step by Step
Molar Mass of Carbon Monoxide: Step-by-Step Calculation
1. Identify Element Counts
Read CO and list how many atoms of each element are present:
- 1 atom of Carbon (C)
- 1 atom of Oxygen (O)
2. Determine Atomic Masses
Look up each element mass from the periodic table:
- Carbon (C) ~= 12.011 g/mol
- Oxygen (O) ~= 15.999 g/mol
3. Multiply Atomic Mass by Quantity
Multiply atom count by atomic mass for each element:
- Carbon (C): 1 x 12.011 = 12.010 g/mol
- Oxygen (O): 1 x 15.999 = 16.000 g/mol
4. Sum Total Molar Mass
Add all contributions to get the final molar mass in g/mol.
Molar Mass = (1 x 12.011 + 1 x 15.999)
Molar Mass = 12.010 + 16.000
Molar Mass = 28.010 g/mol
Final rounded value shown on this page: 28.01 g/mol.
Visual Calculation Chart
| Element | Count | Mass | Count x mass | Contribution |
|---|---|---|---|---|
| Carbon (C) | 1 | 12.011 | 1 x 12.011 | = 12.010 |
| Oxygen (O) | 1 | 15.999 | 1 x 15.999 | = 16.000 |
Final molar mass 12.010 + 16.000 | = 28.010 | |||
When you move to another formula, molar mass gives you the same step-by-step method for quick revision.
Easy Way to Remember
Easy way to remember Molar Mass of Carbon Monoxide
- Molar Mass of Carbon Monoxide: count atoms, multiply masses, and add totals.
- Write each element in a table so you do not miss subscripts.
- Keep 2-3 decimals during steps, then round only at the end.
Sample Reactions
| Type | Reaction |
|---|---|
| Synthesis | ₂H₂ + O₂ → ₂H₂O |
| Combustion | CH₄ + ₂O₂ → CO₂ + ₂H₂O |
Do You Know?
– Carbon Monoxide contains 2 element types: C, O.
– O contributes the largest share of this compound's total molar mass.
– In CO, C appears with the highest atom count.
– Its molar mass is 28.01 g/mol, which is used directly in gram-to-mole conversions.
– A common reaction for Carbon Monoxide is synthesis (₂H₂ + O₂ → ₂H₂O).
Why This Compound Matters
Carbon Monoxide is relevant in gas-law topics and atmosphere-focused chemistry examples.
Its molar mass is used in mole-volume and pressure-based conversion exercises.
Similar calculations can be compared with Carbon Dioxide (CO2) and Water (H2O).
Where This Is Used
- Competitive exams and school chemistry tests.
- Lab work when preparing measured solutions.
- Real-world manufacturing and quality checks.
Common Mistakes When Calculating This
- Skipping subscripts in CO and miscounting atoms.
- Rounding atomic masses too early before finishing all multiplication steps.
- Mixing up O element contribution with total molar mass.
- Reporting a value without units; final answer should be in g/mol for Carbon Monoxide.
Quick Revision
Formula: CO
Molar Mass: 28.01 g/mol
Key takeaway: count atoms accurately, multiply by atomic masses, and sum only at the end.
Formula Explanation
CO contains Carbon (C) (1), Oxygen (O) (1). Add each element contribution to get total molar mass.
FAQ
Conclusion
Molar Mass of Carbon Monoxide and Molar Mass of CO are now easy to revise with this structured page. You can use this method in exams, lab reports, and daily chemistry practice.