Final answer:
To find the number of molecules in a 2.2 mole sample of F2, multiply the number of moles by Avogadro's number.
Step-by-step explanation:
To determine the number of molecules in a given amount of substance, we can use Avogadro's number, which represents the number of particles (molecules or atoms) in one mole of a substance. Avogadro's number is approximately 6.022 x 10^23 molecules/mol. In this case, we have 2.2 moles of F2.
To find the number of molecules, we can use the following conversion:
2.2 mol F2 x (6.022 x 10^23 molecules/mol) = 1.324 x 10^24 molecules of F2