spectroscopy

JCE 96.08 August 2019 Issue Highlights

Chemistry Education: A Bridge to the Future

The August 2019 issue of the Journal of Chemical Education is now available to subscribers. Topics featured in this issue include: authentic chemistry laboratories; student motivation, sustained interest, and student success; student understanding of fundamental concepts; aids to assessment; computer-based learning; active learning activities; engaging polymer chemistry activities; experimenting with flavor and food; organic chemistry laboratories; spectroscopy laboratories; acid-base chemistry; from the archives: polymer properties.

Chemical Connections to Climate Change

It is becoming increasingly important for citizens to understand various concepts related to climate change and global warming. This post describes several chemical concepts that are pertinent to these issues, in the hopes that teachers of science and chemistry can introduce the topic of climate change into their classrooms and everyday discussions.

How a Photon Is Created or Absorbed

Giles Henderson
Eastern Illinois University, Charleston, IL 61920

Robert C. Rittenhouse
Walla Walla College, College Place, WA 99324

John C. Wright and Jon L. Holmes
University of Wisconsin-Madison, Madison, WI 53706

Using "Chemical Detectives" iPad App to Practice Spectroscopy

The new IB curriculum includes compound identification using NMR, IR and Mass spectroscopy. My current high school lab does not have any of these available. And that's no surprise, given the cost of these machines is far out of our budget. And while some of you may be lucky enough to have a connection to a local university or college, for the rest of us what are the options when it comes to teaching spectroscopy?

 

Demonstrating the Colors of Transition Metal Complex Ions

Just the other day within my IB Chemistry HL classes, we were discussing the color of transition metal complex ions in solution. It's a bit imperfect, because they are not yet dissolved, but I set up a number of metal chloride salts in order to help students see the pattern. They are arranged according to the position of the metal in the periodic table. It ends up being quite obvious to the students that the only metal salts with color are in the d-block. I'm now in the process of ordering more chloride salts so I can complete the pattern even more the next time I teach this topic.