1. Avogadro's Number

Avogadro's number tells us the number of atoms or molecules in one mole of a substance. It's approximately 6.022 x 10^23.

2. Calculation

* Divide the number of atoms by Avogadro's number:

(7.45 x 10^24 atoms) / (6.022 x 10^23 atoms/mol)

* This gives you the number of moles: ≈ 12.37 moles

Therefore, there are approximately 12.37 moles of fluorine atoms in the sample.