Understanding Avogadro's Number

Avogadro's number is a fundamental constant in chemistry. It tells us the number of particles (atoms, molecules, or in this case, pens) in one mole of a substance.

* Avogadro's number = 6.022 x 10²³ particles/mole

Calculation

1. Divide the number of pens by Avogadro's number:

(1.204 x 10²⁴ pens) / (6.022 x 10²³ pens/mole) = 2 moles of pens

Answer: You have 2 moles of pens.