Question

Calculate the number of particles (atoms or molecules) of the following:

1. How many molecules are there in 24 grams of FeF3?
2. How many molecules are there in 450 grams of Na2SO4?
3. How many grams are there in 2.3 x 1024 atoms of silver?

Answer 1

1) 1.7 x 10^23 molecules FeF^3
2) 1.9 x 10^24 molecules NA2SO4
3) 410 g A g