Final answer:
To find the number of atoms in 3.46 moles of magnesium, multiply the number of moles by Avogadro's number. The result is 2.08 x 10^24 atoms.
Step-by-step explanation:
To determine the number of atoms in 3.46 moles of magnesium, we can use Avogadro's number. Avogadro's number is a conversion factor that represents the number of atoms in one mole of a substance, which is approximately 6.022 x 1023 atoms/mol.
So, to calculate the number of atoms in 3.46 moles of magnesium, we multiply the number of moles by Avogadro's number:
3.46 mol x 6.022 x 1023 atoms/mol = 2.08 x 1024 atoms
Learn more about Calculating number of atoms in a given amount of substance