Problem: Freon-12 (CCl2F2) is used as a refrigerant in air conditioners and as a propellant in aerosol cans. Calculate the number of molecules of Freon-12 in 5.56 mg of Freon-12. What is the mass of chlorine in 5.56 mg of Freon-12?

🤓 Based on our data, we think this question is relevant for Professor Tomasik's class at CMU.

FREE Expert Solution

Step 1

mg Freon-12 (conversion factor)  g Freon-12(molar mass Freon-12)  mol Freon-12 


5.56 mg CCl2F2×10-3 g CCl2F21 mg CCl2F2×1 mol CCl2F2120.91 g CCl2F2 = 4.5985x10-5 mol CCl2F2


Step 2

mol Freon-12 (Avogadro’s number)  molecules Freon-12


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Problem Details

Freon-12 (CCl2F2) is used as a refrigerant in air conditioners and as a propellant in aerosol cans. Calculate the number of molecules of Freon-12 in 5.56 mg of Freon-12. What is the mass of chlorine in 5.56 mg of Freon-12?

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What scientific concept do you need to know in order to solve this problem?

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.

What professor is this problem relevant for?

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

What textbook is this problem found in?

Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl 2nd Edition practice problems.