Asked by jessica

how many molecules are there in 450 grams of FeF3?
Answered by ~christina~
Use Avogadro's number to get the molecules...

450gFeF3(1mol/#gFeF3)(6.022x10^23molecFeF3/1molFeF3)=____

Find the molar mass of FeF3 and use that for the #gFeF3