Molar Mass of CO2
How to work out the molar mass of CO2
- Count the atoms of each element in CO2: 1 C and 2 O.
- Multiply each count by the element's atomic weight: 1 × 12.011 = 12.011; 2 × 15.999 = 31.998.
- Add the results: 12.011 + 31.998 = 44.009 g/mol.
Frequently asked questions
What is the molar mass of CO2?
The molar mass of carbon dioxide (CO2) is 44.009 g/mol, so one mole of it weighs 44.009 grams.
How many moles are in 100 grams of CO2?
100 g ÷ 44.009 g/mol = 2.272 mol.
Which element makes up most of the mass of CO2?
O, at 72.71% of the mass.
Common compounds
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