Agenda

  1. Mix a solution to a strength you like, then describe it numerically
  2. Compare descriptions β€” grams per litre, scoops, mol/L β€” and who can check you
  3. Dilute yours by half and predict the new number before measuring it
  4. Name it: Concentration β€” mol/L, and why chemists settled there
  5. Practise: Concentration Practice using your own dilution

Things to do before our next class

  • Concentration Practice, questions 1–10.
  • Journal: why β€œone scoop” is not a concentration, in two sentences.