The Avogadro constant is a big number: about (6.022 \times 10^{23}).

This number is really important in chemistry. It helps us figure out how many tiny particles, like molecules, are in a sample.

Here’s how it works:

1. Calculating Moles:
   • There's a simple formula you can use:
     (n = \frac{N}{N_A})
   • In this formula:
     • (n) means moles.
     • (N) is the number of particles.
     • (N_A) is Avogadro's number (that big number we talked about).
2. Connecting to Molar Mass:
   • Molar mass is measured in grams per mole (g/mol).
   • It tells us how much one mole of a substance weighs.
   • This helps us change grams into moles, making our calculations easier.

Using the Avogadro constant helps us get accurate answers when we study chemical reactions.