Understanding the Concepts
* Mole: A mole is a unit of measurement used in chemistry to represent a specific number of particles (atoms, molecules, etc.). One mole contains 6.022 x 10²³ particles (Avogadro's number).
* Avogadro's Number: This is a fundamental constant that relates the number of particles in a mole.
Calculation
1. Start with the number of moles: You have 5.0 moles of Fe.
2. Multiply by Avogadro's number:
5.0 moles Fe * (6.022 x 10²³ atoms Fe / 1 mole Fe) = 3.011 x 10²⁴ atoms Fe
Answer: There are 3.011 x 10²⁴ atoms in 5.0 moles of iron.