Final answer:
The mass of F in 445 g of CaF2 is approximately 108.07 g.
Step-by-step explanation:
The molar mass of CaF2 is 78.08 g/mol. To find the mass of F in 445 g of CaF2, we need to determine the fraction of F in CaF2. We can do this by dividing the molar mass of F by the molar mass of CaF2:
(19.00 g/mol / 78.08 g/mol) x 445 g = 108.07 g
Therefore, there are approximately 108.07 grams of F in 445 grams of CaF2.