Answer:
There are 6, 64 moles of helium atoms.
Explanation:
We use Avogadro's number, according to which in 1 mole of any substance there are 6,023 x 10 e23 particles (example: atoms, molecules). We calculate the number of moles according to the following simple three rule:
6,023 x 10 e23 atoms----1 mol Helium
4.0 x 10e 24 atoms-----x=
x= (4.0 x 10e 24 atomsx1 mol Helium)/6,023 x 10 e23 atoms=
x=6, 64 moles of Helium
