Problem: If you have 20.0 g of carbon dioxide gas, how many molecules of CO 2 do you have?A) 4.30 x 1023 molecules of CO2B) 2.74 x 1023 molecules of CO2C) 5.30 x 1026 molecules of CO2 D) 1.46 x 10-21 molecules of CO2 E) 7.55 x 10-25  molecules of CO2

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FREE Expert Solution
FREE Expert Solution

For this problem, we’re being asked to determine the number of carbon dioxide (CO2) molecules found in 20.00 g CO2. The flow for this problem will be like this:


Mass of CO2(molar mass of CO2)  Moles of CO2 (Avogadro’s number)  Molecules of CO2


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Problem Details

If you have 20.0 g of carbon dioxide gas, how many molecules of CO 2 do you have?

A) 4.30 x 1023 molecules of CO2

B) 2.74 x 1023 molecules of CO2

C) 5.30 x 1026 molecules of CO2 

D) 1.46 x 10-21 molecules of CO

E) 7.55 x 10-25  molecules of CO2

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Our tutors have indicated that to solve this problem you will need to apply the Mole Concept concept. You can view video lessons to learn Mole Concept. Or if you need more Mole Concept practice, you can also practice Mole Concept practice problems.

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Based on our data, we think this problem is relevant for Professor Brown's class at HUMBOLDT.