Solution to Chemical Mystery #18: Peek A Boo Blue!
Tom Kuntzleman | Wed, 08/18/2021 - 09:09
Check out the solution to Chemical Mystery #18: Peek A Boo Blue!
electrochemistry
Simple formation of metal mirrors
Tom Kuntzleman | Mon, 05/10/2021 - 09:57
Beautiful, metallic mirrors of copper or silver can easily be formed in test tubes. Simply add the appropriate metal salt to a test tube, and heat! These reactions should be performed in a fume hood.
Energizer Lab with Virtual Options
Deanna Cullen | Tue, 03/23/2021 - 14:42
In this lab, students connect the workings of an electrochemical cell in the lab with the symbolic equations used in electrochemistry and manipulate a model representing the particulate level of what is happening during the electrochemical process. Although this lab was previously highlighted on ChemEd X, there are now virtual options offered!
Plating Pennies with Tin
Tom Kuntzleman | Tue, 02/02/2021 - 10:06
Learn how to give pennies a beautiful, silvery-colored plating.
Chemical Tests on Coins
Tom Kuntzleman | Mon, 09/16/2019 - 20:07
Simple chemical tests are described that can indicate the presence of certain metals in coins. A wide variety of chemical concepts are involved. The experiments described are a natural fit for the 2019 National Chemistry Week theme of "Marvelous Metals!"
Why Do Dead Batteries Bounce? Chemistry, of Course!
Tom Kuntzleman | Fri, 04/05/2019 - 07:16
Did you know there is a simple test you can do to see if an alkaline battery is fresh or dead? All you need to do is bounce the bottom of a battery onto a hard, flat surface. Guess what causes this difference in bouncing ability between fresh and dead batteries? Chemistry, of course!
JCE 95.09 September 2018 Issue Highlights
Mary Saecker | Thu, 09/13/2018 - 12:25
The September 2018 issue of the Journal of Chemical Education is now available online to subscribers. Topics featured in this issue include: reticular chemistry; laboratory research experience for students; historical perspective; chemistry and the environment; laboratories using color to understand chemistry; electrochemistry laboratories; DIY instrumentation; organic semiconductors; orbitals; computer-based learning and computational chemistry; from the archives: paper chromatography.
Build Your Own Hoffman Apparatus
Deanna Cullen | Tue, 07/25/2017 - 12:03
Students can build their own Hoffman apparatus. An animation of the electrolysis on a particulate level is available to show students before, during or after students perform the electrolysis.
Silver Plated Bulbs
Deanna Cullen | Mon, 12/19/2016 - 13:16
I have used several different versions of the Silver Mirror or Tollen's Test lab. I am sharing the method that has proven to be the most reliable for me. The solutions should be made fresh, the directions must be followed closely and timing is very important. I like the fact that relatively small amounts of the chemicals are required, but as always you must be vigilant with safety precautions.
An Easy Copper Electroplating Demo for Your Redox Unit
Lowell Thomson | Sun, 11/20/2016 - 02:00
My IB seniors are just wrapping up our unit on electrochemistry and redox. This has always been a challenging topic within the IB curriculum. Admittedly, electrochemistry has not ever been my strong suit either, so this year I aimed to strengthen the unit with two additional demonstrations.