Half way through the unit. One thing we’ve noticed about BCA is that it is much easier to find the misconception that students have about what goes on in a reaction and correct it right away.
Lab on Monday. I like to blend the old with the new and have, therefore, dusted off an oldie. Mixing two solutions together to form a precipitate and filter. From the mass of the precipitate, they have to find the Molarity of the original limiting reactant.
As this is my first time with BCA, every time a student comes in with a question, I’m making a note of what to change for next year. the latest one is to remember to stress “subtract reactants” and “Add products”
I’ll see how the lab goes on Monday.