Acid Base

Titrations and Microscale Chemistry

Chad Husting | Sun, 05/21/2017 - 13:42

titrations-and-microscale-chemistry.jpg

I tend to enjoy acid base titrations for several reasons. First, students get to work with burettes, acids, bases and they see a nice "color change" when they reach an endpoint. Many times, students who tend to struggle with pen and paper testing excel at the "hands-on" approach. Titrations also dovetail well with stoichiometry which provides a nice review of information closer to the end of the year.

Titration of an Esterification Reaction to Determine Equilibrium Constant

lowell Thomson | Wed, 09/21/2016 - 08:44

titration-esterification-reaction-determine-equilibrium-constant-preview.jpg

This activity was submitted for a 2016 ChemEd X Call for Contributions soliciting input regarding the big ideas being put forth by organizations like AP. The author shares a lab activity that relies on connections - between stoichiometry, esterification, equilibrium, kinetics, titrations and uncertainty of calculations. He also shares the resources he created.

Doc Saves Everyone – Applying BCA Tables to Titration Calculations

Dena Leggett | Thu, 05/19/2016 - 12:01

doc-saves-everyone-–-applying-bca-tables-titration-calculations.png

I recently stumbled across a blog about the use of BCA (Before Change After) tables for stoichiometry written by Lowell Thomson. I was thrilled to discover ChemEd Xchange! I wanted to share my journey, spurred on by my students, into the extensive use of the BCA approach in AP and

My First Day Demonstration

Michael Morgan | Fri, 07/31/2015 - 19:23

my-first-day-demonstration.jpg

I have a first day routine that I am very proud of. I have used it for 25 years and I think I finally have it down pat. I have spoken to students from 20 years ago at reunions and they tell me that they still remember the first day of chemistry so I think it is pretty good.