Understanding the Relationship

* NaCl (Sodium Chloride): Each molecule of sodium chloride contains one sodium atom (Na) and one chlorine atom (Cl).

* Avogadro's Number: One mole of any substance contains 6.022 x 10²³ particles (atoms, molecules, etc.).

Calculation

1. Atoms in one mole: Since there's one sodium atom per NaCl molecule, there's also one mole of sodium atoms in one mole of NaCl.

2. Atoms in 2.35 moles:

* Multiply the number of moles of NaCl by Avogadro's number: 2.35 mol NaCl * (6.022 x 10²³ atoms/mol) = 1.41 x 10²⁴ atoms

Answer: There are approximately 1.41 x 10²⁴ atoms of sodium in 2.35 mol of NaCl.