Solutions

Two groups of students, typically, have difficulty with titrations, the first time around. Those that act too rashly and overshoot the endpoint, and those over-cautious ones who take forever to finish. I have a nautical analogy that seemed to have helped my groups in my lab recently.

As I mentioned in a previous post, Introduction to the Concept of Antioxidant - A Demo, chitosan is able to counteract oxidation and it also features antimicrobial properties.

It looks as though I’ve discovered that density bottles can be used to explore differences between heterogeneous and homogeneous mixtures!

For my students and me, the AP Chemistry exam does not mark the end of the school year. Once the AP exam is over, my students are exhausted but our class continues to meet for three more weeks. Each year we complete a qualitative analysis lab, but this year we finished earlier than I anticipated. For the first time all year, I have the luxury of time.

A smartphone can be used in a remarkably simple and inexpensive way to teach your students about absorption spectroscopy and Beer’s Law. In short, light reflected off of colored construction paper is passed through a sample and detected by an RGB application on a smartphone.