How many sulfur atoms are there in 3.50 mol of sulfur?

To determine the number of atoms of a substance given its number of mols, multiply number of moles with the Avogadro's number which is approximately equal to 6.022x10^23.

To answer the problem above, multiply 3.50 mols with 6.022x10^23. This gives a product of 2.1077x10^24.

Thus, there are 2.1077x10^24 atoms of sulfur in 3.50 mols of sulfur.