Avogadro's number is a big number: $6.022 \times 10^{23}$.

This number is really important in chemistry. It tells us how many tiny particles, like atoms or molecules, are in one mole of a substance.

Using Avogadro's number helps us switch between moles and particles, making it easier to do math for chemical reactions.

How We Use It:

• Mole Calculations: One mole equals $6.022 \times 10^{23}$ atoms or molecules.
• Mass Conversions: We can change moles into grams by using something called molar mass.

When we understand Avogadro's number, it makes learning about stoichiometry and how compounds are formed in chemistry a lot simpler.