Cautious Chemist Corner #1

I was at a chemistry teacher workshop recently and we participated in a common Hess’s Law laboratory. Part of the procedure required us to measure about 2 grams of solid NaOH and add it to 100 mL of 0.5 M HCl. We also added 50 mL of 1 M NaOH solution to 50 mL of 0.5 M HCl solution. We then compared the energy change of both containers.

ACS Publishes Safety Alert

Robert H. Hill, Jr., Ph.D., Chair, ACS Committee on Chemical Safety asked us to post the following alert about the Rainbow Demonstration. I hope chemistry teachers will share the alert with their networks.

Safety Training Online

As I follow the conversations about the most recent chemistry classroom accident in Manhattan (see my previous blog post), I see that many agree that we need to advocate for adequate required safety training of our present and pre-service teachers. A good starting point is to pursue training on our own.

Lab Accidents

The US Chemical Safety Board is an independent federal agency in Washington DC. They investigate industrial accidents. They just released a video of a young woman speaking about a high school chemistry class accident she was a victim of.