gases

The Dry-Ice-in-Water Cloud

Have you ever wondered where the cloud comes from when dry ice is placed in water? If you think the answer is “atmospheric water vapor”, be sure to read this post because experimental evidence suggests that this explanation is wrong.

JCE 93.08 August 2016 Issue Highlights

Endowing Inspiration

The August 2016 issue of the Journal of Chemical Education is now available online to subscribers. Topics featured in this issue include: blue bottle reaction revisited; precollege professional development; chemical education research on intermolecular interactions and bonding; integrated courses; activities involving kinetics, enzymes, and gases; nanomaterial & polymer laboratories; organic synthesis; NMR teaching resources; book recommendations for summer reading.

Olympiad Laboratory Challenge Part II

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.

Time required: 

45 minutes or less

The Gas Laws Are Out of This World!

A few years ago, we launched a weather balloon during our summer science camp. The balloon reached an altitude of 30 km (100,000 ft)! Among other things, this project ended up being a great way to teach campers about the gas laws and how atmospheric pressure decreases with altitude. 

JCE 92.04—April 2015 Issue Highlights

Chemists Celebrate Earth Day

The April 2015 issue of the Journal of Chemical Education is now available for subscribers at http://pubs.acs.org/toc/jceda8/92/4. This issue features articles on atmospheric and environmental chemistry. Also featured in this issue are: microfluidic devices; problem solving strategies; information literacy; kinetics & thermodynamics; investigations of gases and organic synthesis; outreach.