Curie Notes 05: The Mole, or Counting Atoms by Weighing
Nobody will ever count the atoms in a spoonful of charcoal one by one. With a balance and a short table, I show you how to count them by weighing.
Learn the mole and the Avogadro constant, find molar masses, and convert grams to moles to atoms, with Marie Curie and Jean Perrin's grains.
Marie Curie
November 8, 2026
32 min