The molar mass and molecular weight of Carbon monoxide (CO) is 28.0104 g/mol.
The composition of the CO formula is as follows:
| Element | Symbol | Atomic Weight | Atoms | Total Atomic Weight | Mass Percent |
|---|---|---|---|---|---|
| Oxygen | O | 15.9994 g/mol | 1 | 15.9994 g/mol | 57.1195% |
| Carbon | C | 12.011 g/mol | 1 | 12.0110 g/mol | 42.8805% |
How to find the molar mass of Carbon monoxide (CO)?
The molar mass and molecular weight of Carbon monoxide (CO) can be calculated in 4 steps.
Step I: Identify the different elemental atoms present in the CO compound.
The given compound is CO. It comprises atoms from 2 different elements i.e., Oxygen (O) and Carbon (C).
Step II: Find the atomic weight of each element in the CO.
Here is the list of atomic weights for all elements, let’s check the Oxygen (O) and Carbon (C) atom’s atomic weight.
• The atomic weight of Oxygen (O) is 15.9994 g/mol.
• The atomic weight of Carbon (C) is 12.011 g/mol.
Step III: Determine the number of atoms of each element present in the CO compound.
As per the chemical formula, CO, It is made up of 1 Oxygen atom and 1 Carbon atom.
| Element | Number of Atoms |
|---|---|
| O (Oxygen) | 1 |
| C (Carbon) | 1 |
Step IV: Calculate the molar mass of the Carbon monoxide (CO) compound by applying the formula:
For Carbon monoxide (CO):
Substituting into the above formula, the values determined in steps II and III:
Molar mass of CO = [(15.9994 x 1) + (12.011 x 1)]
Molar mass of CO = 15.9994 + 12.011 = 28.0104 g/mol
Result: The molecular weight and molar mass of Carbon monoxide (CO) is 28.0104 g/mol.
FAQs
What is the mass percent composition of Oxygen (O) in Carbon monoxide (CO)? |
To find the mass percent of Oxygen in CO, follow the steps given below:
∴ Mass of Oxygen in CO = 15.9994 x 1 = 15.9994 g/mol. Mass Percent Composition (%) Formula = (Mass of Element in the Compound/Molar Mass of the Compound) x 100 ∴ Mass percent of Oxygen in CO = (Mass of Oxygen in CO/Molar mass of CO) × 100% Result: CO contains 57.12 % of Oxygen as per its chemical composition.
|
What is the mass percent composition of Carbon (C) in Carbon monoxide (CO)? |
To find the mass percent of Carbon in CO, follow the steps given below:
∴ Mass of Carbon in CO = 12.011 x 1 = 12.0110 g/mol. Mass Percent Composition (%) Formula = (Mass of Element in the Compound/Molar Mass of the Compound) x 100 ∴ Mass percent of Carbon in CO = (Mass of Carbon in CO/Molar mass of CO) × 100% Result: CO contains 42.88 % of Carbon as per its chemical composition.
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What is the atomic percentage composition of elements in Carbon monoxide (CO)? |
| Atomic percentage composition formula (%) = Number of atoms of a particular element in a compound/Total number of atoms in that compound
For CO: The atomic percentage composition of elements in the compound is: Atomic percentage of Oxygen (O) in CO: Atomic percentage of Carbon (C) in CO:
|
How many grams of Oxygen are present in 1 mole of CO? |
| There are 1 O-atoms in a CO molecule. • Atomic weight of a O-atom = 15.9994 g/mol ∴ Total mass of Oxygen in 1 mole of CO = 1 x 15.9994 = 16.00 g. Therefore there are 16.00 grams of Oxygen in 1 mole of CO. |
What is the mass of 2 mol of CO? |
| The molecular mass of CO is 28.0104 g/mol. This means 28.0104 grams of CO are present per mole. Therefore, we can find the mass of CO in 2 moles as follows: ∴ Moles = Mass/Molar Mass ∴ Mass of CO = Moles x Molar mass ∴ Mass of CO = 2 x 28.0104 = 56.02 g Thus, the mass of 2 mol of CO is 56.02 g. |
If you have 21.6015 grams of CO, how many moles do you have? |
| ∴ Moles = Mass/Molar mass ∴ Moles of CO = 21.6015/28.0104 = 0.7712 Thus, there are 0.7712 moles of CO in its 21.6015 grams. |
What is the mass in kg of 4.67 x 1025 molecules of CO? |
| 1 mole of a substance contains Avogadro number of particles i.e., 6.02 x 1023. Therefore, the number of moles in 4.67 x 1025 molecules of CO are: ∴ Moles of CO = 4.67 x 1025/6.02 x 1023 = 77.5
Now that we have its number of moles, so, we can use the molar mass of CO (28.0104 g/mol) to find its mass as shown below. ∴ Mass of CO = Moles x Molar mass
∴ Mass of CO = 77.5 x 28.0104 = 2172.16 g
Converting mass from grams (g) to kilograms (kg) gives us: ∴ Mass of CO = 2172.16/1000 = 2.17 kg
The mass of 4.67 x 1025 molecules of CO is 2.17 kg.
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What is the molar mass and molecular weight of Carbon monoxide (CO)? |
CO is composed of 1 Oxygen (O), and 1 Carbon (C) atom.
To find the molecular mass of CO, one multiplies the atomic weight of each element by its number of atoms in the molecule and then sums the results. ∴ For CO, it’s (1 x 15.9994) + (1 x 12.0110).
Therefore, the molar mass of Carbon monoxide (CO) is 28.0104 g/mol.
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About the author
Vishal Goyal is the founder of Topblogtenz, a comprehensive resource for students seeking guidance and support in their chemistry studies. He holds a degree in B.Tech (Chemical Engineering) and has four years of experience as a chemistry tutor. The team at Topblogtenz includes experts like experienced researchers, professors, and educators, with the goal of making complex subjects like chemistry accessible and understandable for all. A passion for sharing knowledge and a love for chemistry and science drives the team behind the website. Let's connect through LinkedIn: https://www.linkedin.com/in/vishal-goyal-2926a122b/