Understanding the Concepts
* Mole (mol): A unit of measurement representing a specific number of particles (atoms, molecules, etc.). One mole contains 6.022 x 10^23 particles (Avogadro's number).
* Avogadro's Number: The number of particles (atoms, molecules, etc.) in one mole of a substance.
Calculation
1. Start with the number of moles: You have 1.5 moles of calcium.
2. Multiply by Avogadro's number:
(1.5 mol Ca) * (6.022 x 10^23 atoms/mol) = 9.033 x 10^23 atoms
Answer: There are approximately 9.033 x 10^23 atoms in 1.5 moles of calcium.
