Avogadro's Number
The key to this calculation is Avogadro's number, which is a fundamental constant in chemistry. It tells us the number of particles (atoms, molecules, ions, etc.) in one mole of a substance.
* Avogadro's Number: 6.022 x 10²³ particles/mole
Calculation
1. Start with the number of moles: 0.536 moles
2. Multiply by Avogadro's number: 0.536 moles * (6.022 x 10²³ molecules/mole)
3. Result: 3.22 x 10²³ molecules
Therefore, there are approximately 3.22 x 10²³ molecules in 0.536 moles of a substance.