Understanding the Concepts
* Mole (mol): A unit of measurement for the amount of a substance. One mole contains 6.022 x 10²³ particles (atoms, molecules, etc.). This number is known as Avogadro's number.
Calculations
1. Use Avogadro's Number: Since 1 mole of Mg contains 6.022 x 10²³ Mg atoms, 5.1 moles will contain:
5.1 mol Mg * (6.022 x 10²³ atoms/mol) = 3.07 x 10²⁴ Mg atoms
Answer: There are approximately 3.07 x 10²⁴ Mg atoms in 5.1 mol of Mg.
