Question

How do you know when to use Avogadro's constant?

Answer 1

Avogadro's number is a very important relationship to remember: 1 mole = 6.022×1023 6.022 × 10 23 atoms, molecules, protons, etc. To convert from moles to atoms, multiply the molar amount by Avogadro's number. To convert from atoms to moles, divide the atom amount by Avogadro's number (or multiply by its reciprocal).

Answer 2

We use avogadro no. when question is asking something related moles or no. of particles.