How many moles are in 4.87 x 10^11 molecules of CH3Cl2?

Answer 1

For this question, you will need to remember that one mole is equivalent to 6.022 x10^23 molecules (Avogadro's number). Using this conversion factor, we can use dimensional analysis to solve this problem:

4.87 x10^11 molecules * (1 mole/6.022 x10^23 molecules) = 8.09 x 10^-13 moles

Hope this helps!