Understanding the Concepts
* Mole (mol): A unit of measurement that represents a specific number of particles (atoms, molecules, etc.).
* Avogadro's Number: The number of particles (atoms, molecules, etc.) in one mole of a substance. It's approximately 6.022 x 10^23.
Calculation
1. Use Avogadro's Number: Since one mole of any substance contains Avogadro's number of particles, 0.75 mol of Ag will contain 0.75 times that number of atoms.
2. Multiply:
0.75 mol Ag * (6.022 x 10^23 atoms/mol) = 4.5165 x 10^23 atoms
Answer: There are approximately 4.5165 x 10^23 silver atoms in 0.75 mol of Ag.