Question

how many atoms are there in 5.10 moles of sulfur?

Answer 1

(5.10 mol)(6.02e23 atoms/mol) so I believe the answer is 3.07e24 atoms

Answer 2

1 mole ------------ 6.02 x 10²³ atoms
5.10 moles ------ ( atoms sulfur )

atoms sulfur = 5.10 x ( 6.02 x 10²³)

= 3.07 x 10²⁴ atoms of sulfur

hope this helps!