Question

How many atoms in 4.98 moles Al

Answer 1

I made some explain and i found them for you:

I think that, considering that a mole contains an Avogadro's number of elements, there should be 6.2× an Avogadro's Number of atoms of Al. 6.2×6.022×1023=3.733×1024 atoms.
Chemistry 5.9a The Mole Concept.