Understanding the Concepts
* Mole: A mole is a unit of measurement used in chemistry to represent a specific number of particles (atoms, molecules, ions, etc.). One mole is equal to 6.022 x 10²³ particles. This number is known as Avogadro's number.
* Nitrogen Dioxide (NO₂): This is a molecule composed of one nitrogen atom and two oxygen atoms.
Calculation
1. Avogadro's Number: We know that one mole contains 6.022 x 10²³ particles.
2. Molecules in NO₂: Since NO₂ is a molecule, one mole of NO₂ contains 6.022 x 10²³ molecules of NO₂.
Answer
Therefore, there are 6.022 x 10²³ molecules in one mole of nitrogen dioxide (NO₂).
