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JCE 93.08 August 2016 Issue Highlights

Mary Saecker | Fri, 08/12/2016 - 12:03
Journal of Chemical Education August 2016

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.

JCE 93.02 February 2016 Issue Highlights

Mary Saecker | Mon, 02/15/2016 - 10:31
Journal of Chemical Education February 2016 Cover

Providing Unique Learning Experiences

The February 2016 issue of the Journal of Chemical Education is now available online to subscribers. Topics featured in this issue include: metal–organic cage & host–guest interactions; safety; innovative teaching approaches; understanding kinetics; computer-based instruction; activities combining ethics and analysis; “play with your food” laboratories; synthesis and analysis in the laboratory; fluorescence-based experiments; chemical education research; mining the archives: copper.

JCE 93.01—January 2016 Issue Highlights

Mary Saecker | Thu, 01/14/2016 - 12:55
Journal of Chemical Education January 2016 Cover

Kick Off 2016 with Volume 93

The January 2016 issue of the Journal of Chemical Education is now available online to subscribers. Topics featured in this issue include: examining the flipped classroom; central ideas in chemistry & teaching; chemistry, art, & color; expanding student understanding; improving student communication skills; analytical chemistry & instrumental analysis; experimenting with natural products; undergraduate research experiences; educational resources; from the archive: using nonfiction to teach.

JCE 92.06—June 2015 Issue Highlights

Mary Saecker | Fri, 06/12/2015 - 07:35
Journal of Chemical Education June 2015 Cover

Extending and Deepening Student Understanding

The June 2015 issue of the Journal of Chemical Education is now available online to subscribers at http://pubs.acs.org/toc/jceda8/92/6. This issue includes articles on curriculum; assessment; inorganic chemistry; investigating galvanic cells & exploring LEDs; atomic structure; nanochemistry laboratories; physical chemistry in the lab; synthesis.

 

Mass of a Reaction Product

DAVID LICATA | Wed, 10/29/2014 - 21:41
Sodium carbonate reacts with hydrochloric acid producing bubbles

Students combine sodium carbonate and hydrochloric acid generating carbon dioxide gas which is allowed to escape. They measure the actual yield of carbon dioxide produced (missing mass), calculate the theoretical yield using stoichiometry, and then the percent yield. Students understand that 100% yield is the most appropriate answer (based on the Law of Conservation of Mass), so after considering the meaning of significant figures and the uncertainty of their measurements they are asked to decide if they did (or did not) get an answer that might indicate the validity of the Law.

Time required: 

One 50-minute period to perform the lab. One additional period to perform the calculations (optional). Often more able students will have time to begin some calculations at the end of the lab experiment.