1. Avogadro's Number:
* Avogadro's number tells us the number of particles (atoms, molecules, etc.) in one mole of a substance. It's approximately 6.022 x 10²³ particles/mole.
2. Chlorine Gas (Cl₂):
* Chlorine gas exists as a diatomic molecule (Cl₂), meaning each molecule contains two chlorine atoms.
Calculation:
1. Moles to Molecules: Since we have 1.00 mole of Cl₂ gas, we have 1.00 mole * 6.022 x 10²³ molecules/mole = 6.022 x 10²³ molecules of Cl₂.
2. Molecules to Atoms: Each Cl₂ molecule contains two chlorine atoms. So, we have 6.022 x 10²³ molecules * 2 atoms/molecule = 1.204 x 10²⁴ chlorine atoms.
Answer: There are 1.204 x 10²⁴ chlorine atoms in 1.00 mole of chlorine gas (Cl₂).
