Dust Off Your Molecule Kits!
Melissa Hemling | Thu, 03/18/2021 - 18:54
Many of us have molecular kits we only use once a year. Dust them off and find new lessons to use them in!
Titration
Review Lab - Better than a Worksheet
Chad Husting | Tue, 01/01/2019 - 07:20
It can be difficult to engage students in reviewing for semester exams by using worksheets or practicing problems on the whiteboard. If you are looking to change up your review plans, you might consider using a lab activity that provides opportunity to revisit many of the topics that need to be covered.
Demonstrating the Effect of a Strong Acid or Base on a Buffer System
Dan Meyers | Tue, 06/12/2018 - 07:31
How do you demonstrate how a buffer system works? I did some brainstorming, devised a plan and it went well. This post is a description of what I did.
Determination of Citric Acid in Candies
Andrea Amato | Thu, 05/03/2018 - 22:12
Looking to change up your titration lab? Citric acid is very common in candy and other foods. Students will be engaged in using titration to find the amount of the acid in Mentos Now or other candy. Student and teacher documents are provided to help you use the activity with your own students.
Titration: What do you prefer?
Chad Husting | Tue, 05/01/2018 - 20:24
Titrating this year for me has an added complication. The complication is that half of the science department has to be completely packed up and out of our rooms, including chemicals and equipment, before school ends. Half of the department is going to be completely remodeled (my half of course). Teaching must still go on in the middle of the madness.
Using Visual BCA Tables to Teach Limiting Reactants
Melissa Hemling | Wed, 04/26/2017 - 11:10
Looking for a better way to teach stoichiometry? Melissa incorporates modeling into BCA tables.
Do you have a favorite acid-base titration lab?
Allison Tarvin | Sat, 03/11/2017 - 10:11
HCl and NaOH, a strong acid - strong base titration? Citric acid and NaOH, a weak, triprotic acid - strong base titration? Do your students standardize the NaOH solution as a first step?
Titration of an Esterification Reaction to Determine Equilibrium Constant
Lowell Thomson | Wed, 09/21/2016 - 08:44
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
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
Lab 20 aka Check the Solution!
Sarah Kong | Thu, 04/16/2015 - 19:29
Last night I had the opportunity to do another lab that I wrote with my students. It is so exciting to see something go from words on a screen to a group of students working together in a laboratory. I learned so much as I walked around the room last night. Here are a few highlights: