Understanding the Concept
* Avogadro's Number: One mole of any substance contains 6.022 x 10²³ particles (atoms, molecules, etc.). This is known as Avogadro's number.
Calculation
1. Divide the number of atoms by Avogadro's number:
(1.8 x 10²³ atoms of copper) / (6.022 x 10²³ atoms/mole) = 0.3 moles of copper
Answer: You have 0.3 moles of copper.