1. Avogadro's Number
* Avogadro's number tells us the number of particles (atoms, molecules, etc.) in one mole of a substance. It's a fundamental constant: 6.022 x 10^23 particles/mol.
2. Calculation
* To find the number of atoms in 1.25 mol of silver, multiply the moles by Avogadro's number:
Number of atoms = (1.25 mol) * (6.022 x 10^23 atoms/mol)
= 7.5275 x 10^23 atoms
Answer: There are approximately 7.53 x 10^23 atoms in 1.25 mol of silver.
