the mass of an individual atom of fluorine is 19 amu. how many atoms would weigh a total of 1.7455x10-3g of this element if the mass of 1 amu is 1.6650x10-24

Answer 1

Divide 1.7455x10-3 g by the mass of one F atom, which is 19*1.6650x10-24 g
That will give you the number of atoms.

Answer 2

i got 1.812e-25 but it says that not the correct answer

Answer 3

it didn't work

Answer 4

1.7455e-3/(19*1.6650e-24) is not 1.812e-25

Answer 5

ty