Answer:
A mole is the quantity of a substance that is equal to Avogadro's constant. The 1.993 moles contain atoms of sulfur.
Mole :
It is the amount of substance that contains as many elementary entities as in 12 g of Carbon-12. It is equal to the atoms, molecules, or ions.
As mentioned above,
1 mole =
Number of mole formula,
Hence it can conclude that the 1.993 moles contain atoms of sulfur.