Constructing a Class Acid-Base Titration Curve

Submitted by Nicole Crowder / University of Mary Washington on Tue, 07/09/2019 - 17:15
Description

In this in-class activity, each student calculates the inital pH, equivalence volume, and pH at the equivalence point for both a strong acid-strong base and a weak acid-strong base titration.

In addition, each student is assigned a unique volume before the equivalence point and a unique volume after the equivalence point for each titration curve.

The data from the class is then assembled in Excel to construct the two titration curves.

An improved method for drawing the bonding MO for dihydrogen

Submitted by Adam Johnson / Harvey Mudd College on Sun, 06/09/2019 - 14:42
Description
Most of us have probably been there. Discussing homonuclear diatomic MO diagrams and on the first day you want to put up the sigma bonding molecular orbital for H2. If you teach it like me, you emphasize the LCAO-MO approach, so you draw a hydrogen atom with its 1s orbital interacting with a hydrogen atom with its 1s orbital...and then you notice giggling from the less mature audience members. My technique will help to prevent this from happening. The technique is in the "faculty only" files section.

Principles of Chemistry II

Submitted by Michelle Personick / Wesleyan University on Sun, 06/09/2019 - 08:54
Description

This second semester general chemistry course is a continuation of the Principles of Chemistry sequence that is recommended for science students. The focus of the course is the fundamentals of structure and bonding, with an emphasis on predicting reactivity.

VIPEr Fellows 2019 Workshop Favorites

Submitted by Barbara Reisner / James Madison University on Sat, 06/08/2019 - 16:41

During our first fellows workshop, the first cohort of VIPEr fellows pulled together learning objects that they've used and liked or want to try the next time they teach their inorganic courses.

VSEPR: Flash Review

Submitted by Chris Durr / Amherst College on Thu, 06/06/2019 - 16:36
Description

This presentation is meant to be a review of applying VSEPRup to steric number 6. It's designed to be viewed as a powerpoint and printed out to keep for the student's notebook.

It can be used at multiple levels: as a review immediately after learning VSEPR in general chemistry, or as a refresher before starting upper level inorganic chemistry. The instructor could add text or voice over the slides to add more detail or leave the presentation as is for students.

Molecular Orbital Theory: Flash Review

Submitted by Chris Durr / Amherst College on Thu, 06/06/2019 - 16:28
Description

This presentation is meant to be a review of constructing and utilizing an MO diagram, in this case O2. It's designed to be viewed as a powerpoint and printed out to keep for the student's notebook.

It can be used at multiple levels: as a review immediately after learning MO theory in general chemistry, or as a refresher before starting upper level inorganic chemistry. The instructure could add text or voice over the slides to add more detail or leave the presentation as is for students.

Maths for Chemists

Submitted by David J Harding / Walailak University on Sun, 06/02/2019 - 22:12
Description

Chemistry requires mathematics in almost all areas but it is a subject many students struggle with. This short booklet introduces mathematics from basic concepts to more advanced topics. A particularly nice feature is that examples of chemistry calculations are included so that students can understand why they have learn mathematics at all. This resource comes from the Royal Society of Chemistry's Learn Chemistry website.

Helping Students with Visual Impairments See Colors

Submitted by Doug Balmer / Warwick High School on Fri, 05/31/2019 - 12:05
Description

I have had some students in class have a hard time identifying colors (flame tests, solution color, acid-base indicators, etc.) because of a visual impairment. There are many cell-phone apps that are helpful in aiding these students. "Pixel Picker" allows the students to load a picture from a device (cell phone, ipad). This is helpful because students are now dealing with a "frozen" image. Moving the cross-hair to different parts of the picture changes the R-G-B values. The "Color Blind Pal" app uses a more qualitative approach.

Teaching Computational Chemistry

Submitted by Joanne Stewart / Hope College on Thu, 05/23/2019 - 14:10

This is a series of in-class exercises used to teach computational chemistry. The exercises have been updated and adapted, with permission, from the Shodor CCCE exercises (http://www.computationalscience.org/ccce). The directions provided in the student handouts use the WebMO interface for drawing structures and visualizing results. WebMO is a free web-based interface to computational chemistry packages (www.webmo.net).

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