Synthesis of Aspirin- A Lewis Acid Approach

Submitted by Kathleen Field / WGU on Mon, 06/29/2015 - 21:29
Description

This is the procedure for a Fe(III) catalyzed synthesis of aspirin, an alternative to the traditionally sulfuric acid catalyzed synthesis of aspirin.  The prep compares and contrasts the Bronsted acid catalyzed esterification reaction with a Lewis acid iron (III) catalyzed pathway.  This can be used in different courses at different levels, but is it written for a general/intro level chemistry course.    

Teaching and Learning Package Library from University of Cambridge

Submitted by Vanessa / Albion College on Mon, 06/29/2015 - 15:56
Description

This is a resource that has short, animated tutorials on a variety of different topics. Most of the topics are materials science and/or engineering topics but there are several that would be of interest to chemistry students. (A full list of topics is given below.)

Vibrational Modes and IR Spectra for Intro Chem

Submitted by Karen McFarlane Holman / Willamette University on Mon, 06/29/2015 - 15:14
Description

In this activity, Introductory Chemistry students are given two possible structures of sulfur dioxide, and based on an assessment of given vibrational modes, they determine which of the modes are IR active (and thus, whether the molecule is a greenhouse gas).  They compare their assessment to experimental IR absorption peaks, and the students decide which structure is valid.

Lewis Structure Challenge

Submitted by David Laviska / Seton Hall University on Mon, 06/29/2015 - 14:24
Description

This in-class activity is designed to give general chemistry students practice with drawing Lewis structures. Small groups of 3-5 students compete for points by creating hypothetical molecules that meet criteria (numbers of elements and atoms) assigned by the professor. Beginning with simple molecules, the basic challenge format calls for increasingly complex criteria in successive rounds of competition. One optional variation also allows student groups to challenge each other for bonus points.

Beautiful Chemistry

Submitted by Adam Johnson / Harvey Mudd College on Wed, 06/10/2015 - 14:42
Description

This is just a cool little website I just happened to stumble upon today while looking for something else at the RSC site. It comes from China, and it is pretty!

Sheila's Safety Net

Submitted by Sheila Smith / University of Michigan- Dearborn on Wed, 06/10/2015 - 12:43

Collection of Safety LOs from VIPEr

The Orbitron

Submitted by Barbara Reisner / James Madison University on Wed, 06/10/2015 - 12:06
Description

Do you want to show your students beautiful illustrations of atomic orbitals? My favorite place to go is the Orbitron, Mark Winter's gallery of AOs and MOs on the web. Not only can you see images, but you can link to different representations of the wave functions and electron density functions.

Flash is required for this site.

NIST Standard Reference Databases

Submitted by Barbara Reisner / James Madison University on Wed, 06/10/2015 - 11:31
Description

The NIST (National Institute of Standards and Technology) Standard Reference Databases provides valuable resources. Two resources were specifically mentioned by respondents to the 2013 Inorganic Curriculum Survey: the webbook and the stability constants of metal complexes. Some of the data in the Chemistry WebBook include