Evans' Method Calculator

Submitted by Brad Wile / Ohio Northern University on Fri, 06/26/2020 - 13:35
Description

A spreadsheet hosted on Pete Wolczanski's webpage for calculating (mu)effective

Pre-Modern Chemistry: A Brief World History

Submitted by Shirley Lin / United States Naval Academy on Fri, 06/19/2020 - 10:40
Description

This Powerpoint presentation was developed to support diversity, equity and inclusion (DEI) in the chemistry classroom. One of the challenges of modern chemistry (and other modern STEM fields) is that the history discussed in general chemistry textbooks often focuses on achievements by Western scientists. While the most prominent chemists in the area of modern atomic theory were privileged, Western white men, their ideas were influenced by centuries of chemistry practiced by peoples across the globe.

Crystal Field Activation Energy Exploration

Submitted by Adam Johnson / Harvey Mudd College on Sat, 06/13/2020 - 19:30
Description

I have long taught CFAE as a topic in my inorganic class, but only over the last 3-5 years has the concept really solidified with me. I think this exercise really does a good job explaining that even a simple theory can have predictive power. I have not seen this analysis in a textbook. Lots of books discuss CFAE and its impact on rate, but taking it to the next step and benchmarking it on real data and ∆o values, I have not seen. Maybe it is because I am not a kineticist and don’t see the “obvious” implications of this.

Identity and Chemistry with Uncle Tungsten

Submitted by Nancy Williams / Scripps College, Pitzer College, Claremont McKenna College on Wed, 06/10/2020 - 19:12
Description

I have taught the book Uncle Tungsten: Memoirs of a Chemical Boyhood by Oliver Sacks in my Inorganic Chemistry course for juniors and seniors for a decade, but the way I teach the book has dramatically changed in recent years.

The book is a (somewhat nostalgic and bittersweet) recollection of Sacks' childhood and his early experiments in inorganic chemistry, and initially we read it on that basis. However, Sacks also talks (even in the first chapter) about his family's identities as "people who do science" and his identity as a Jewish child in 1940s Britain.

Gold carbonyl complexes

Submitted by Adam Johnson / Harvey Mudd College on Tue, 06/09/2020 - 15:06
Description

I've been meaning to write an LO on non-classical metal carbonyl complexes for a long time. This paper describes the synthesis and characterization of a gold carbonyl prepared in superacidic media. The LO asks the students to do some relatively straightforward reduced mass calculations to predict the 13C labeled CO stretch from the unlabeled one, but then asks the students to think about /why/ the Au-CO stretch is /higher/ than that of free CO.

Fostering a Growth Mindset: Inspiring Belief

Submitted by Anne Bentley / Lewis & Clark College on Tue, 06/09/2020 - 13:25
Description

I developed this short class component in response to reading Saundra Yancy McGuire’s book, “Teach Students How to Learn.”  One chapter focuses on the importance of mindset, a concept developed by Carole Dweck. Students with a growth mindset believe that they can learn how to learn challenging material, while students with fixed mindsets believe that ability is innate and unchangeable.

MO diagram for square planar methane guided inquiry

Submitted by Adam Johnson / Harvey Mudd College on Tue, 05/19/2020 - 18:16
Description

This guided inquiry activity takes students through the process of constructing an MO diagram for square planar methane. LGOs are constructed using a graphical approach. Students are guided through a process that allows them to use their MO diagram to make a claim about chemical properties.

MO diagram for water guided inquiry

Submitted by Adam Johnson / Harvey Mudd College on Tue, 05/19/2020 - 16:59
Description

This guided inquiry activity takes the students through the whole process of constructing an MO diagram for water in detail. The LGOs are constructed using my graphical approach (linked below) and hybrid orbital formation is discussed. Along the way, students are given hints on what to think about when constructing an MO diagram.

Oscillating Stereocontrol: A Strategy for the Synthesis of Thermoplastic Elastomeric Polypropylene

Submitted by Shirley Lin / United States Naval Academy on Mon, 05/18/2020 - 15:25
Description

This literature discussion focuses upon the Science article by Coates and Waymouth reporting the synthesis of thermoplastic elastomeric polypropylene by an unbridged zirconocene. This article was the basis for the work done for my PhD thesis in the Waymouth group. The LO was written in May 2020 in honor of Bob Waymouth's 60th birthday. See the BITeS post announcing the LO here