ChemEd X activities are student-centered resources intended to aid learning chemistry topics.

ChemEd X encourages engaging activities where students (with guidance from the teacher) pose questions, analyze data, and make observations to offer a plausible explanation supported by data and consistent with physical observations.

by Melanie Harvey
Tue, 05/04/2021 - 21:20

To help introduce students to organic nomenclature in a way that clearly summarizes the patterns that exist in the IUPAC system, a series of paper tools were developed. The paper tool in this activity can be used to introduce the IUPAC naming of major classes of organic compounds. These paper tools are easy to print and distribute to every student each semester.

Recent activity: 22 hours 30 min ago
by Melanie Harvey
Mon, 04/05/2021 - 18:05

Organic nomenclature is usually taught as an introduction to organic chemistry. To help introduce students to organic nomenclature in a way that clearly summarizes the patterns that exist, a paper tool for naming hydrocarbons was developed. 

Recent activity: 1 month 1 hour ago
by Katy Dornbos
Sun, 04/04/2021 - 17:30

This activity aims to boost students’ confidence in representing the atomic world. It also aims to educate both students and the general public about the “chemicals” found in everyday objects.

Recent activity: 1 month 11 hours ago
by Thomas Cox
Fri, 04/02/2021 - 22:30

This classroom activity challenges students to figure out the volume of gaseous carbon dioxide emitted from the combustion of 1 gallon of gasoline fuel.

Recent activity: 1 month 2 days ago
by Katy Dornbos
Fri, 03/26/2021 - 10:30

If a student “gets the wrong answer” while performing mole conversions, it can be difficult (for both student and the teacher) to discern where an error was made. Inevitably sometime toward the beginning of learning these conversions, students can become overly confident, plugging numbers in without thinking about whether they are sensical. This card set slows students down to think about the order and purpose of each of the steps in mole conversions. 

Recent activity: 3 weeks 6 days ago
by 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!

Comments: 2
Recent activity: 1 week 5 days ago
by Nick Thomas
Tue, 03/23/2021 - 08:00

Assembling a large graduated cylinder with colored sugar solutions of various densities is described. By filling the cylinder in the reverse order from bottom up, very little mixing occurs resulting in an attractive classroom demonstration to illustrate density. Students also have to opportunity to practice density and dilution calculations.

Recent activity: 1 month 8 hours ago
by Douglas Mulford
Mon, 03/15/2021 - 11:17

The demonstration where CO2 is generated and used to snuff out a candle in an aquarium or other container is well known. This article describes a dramatic variation on these demonstrations that allows for discussion of such topics as the ideal gas law, densities of different gases, gas density changes with temperature, miscibility, and viscosity. The device described is easily and inexpensively produced and stored. The demonstration is large scale and works well for classrooms and community outreach events. 

Recent activity: 1 month 3 weeks ago
by Chad Husting
Mon, 03/15/2021 - 10:23

Infrared technology (FLIR Cameras) can be used to investigate intermolecular forces. 

Recent activity: 1 month 3 weeks ago
by Tom Kuntzleman
Wed, 03/03/2021 - 13:43

Observing the floating and sinking behavior of diet and sugared sodas is a classic chemistry demonstration. Learn how to perform this experiment as a quantitative lab that can be accomplished as an at-home activity!

Recent activity: 2 months 3 days ago