Chemical Mystery #14: Loves Me…Loves Me Not
Tom Kuntzleman | Tue, 02/19/2019 - 09:46
You can figure out how this Valentine's Day experiment was done...if you know your chemistry, that is!
pH
Solution to Chemical Mystery #13: Bye Bye Blue!
Tom Kuntzleman | Thu, 11/22/2018 - 08:12
The solution to Chemical Mystery #13: Bye Bye Blue! is presented. This experiment is useful to demonstrate to students when discussing acid-base indicators, neutralization reactions, or the acidity of carbon dioxide when it dissolves in water.
Chemical Mystery #13: Bye Bye Blue!
Tom Kuntzleman | Mon, 11/19/2018 - 12:08
A simple, but tricky experiment is displayed. Can you figure out how the trick was done?
Investigations of Chemicals in Natural Food Coloring. Part 3: Sunflower
Tom Kuntzleman | Tue, 03/28/2017 - 08:39
The chemistry of the Sunflower dye found in McCormick’s Color from Nature food dyes is explored in this post. This is the last in a three-part series in which several experiments and demonstrations that can be done with Color from Nature food dyes are described.
Investigations of Chemicals in Natural Food Coloring. Part 2: Berry
Tom Kuntzleman | Mon, 02/27/2017 - 13:42
The chemistry of the Berry dye found in McCormick's Color From Nature food colors is explored. This is part two of a three-part series in which the chemistry of McCormick's Color From Nature food colors is presented.
Electrolysis of a sulfuric acid solution
An electric current is passed through a sulfuric acid solution. Gases collected at the electrodes are tested.
Electrolysis of a neutral solution animation
This animation simulates the electrolysis of a neutral aqueous solution.
Electrolysis of hydrochloric acid solution with indicator
In aqueous hydrochloric acid, the electrolyzed solution is acidic at both electrodes.
Electrolysis of sodium hydroxide solution with indicator
In aqueous sodium hydroxide, the electrolyzed solution is basic at both electrodes.
Electrolysis of sodium chloride solution with indicator
In neutral sodium chloride, base is produced at the cathode and acid at the anode.