Chemical Mystery #13: Bye Bye Blue!
This chemical mystery is very easy to perform. Figuring out how this trick is done is also easy...if you know your chemistry!
The solution can be found here.
Collection(s)
Tom Kuntzleman
Wayne State University Assistant Professor of Teaching - Chemistry
ChemEd X Associate_Editor, Author, Reviewer, Contributor, Subscriber
I have taught science at all levels from Kindergarten through upper division undergraduate. Member of ACS, AACT.
Comments
9Boy that's looking acid basey to me.... Anywhere close?
In reply to Boy that's looking acid basey by pricepd
Good thinking!
You are on the right track!
Incomplete demo
I would like to check what happens if you simply leave the blue without moving any air over it in more than 10 seconds. I see the borders are white in all the tries. I suspect the white is due to oxygen.
In reply to Incomplete demo by ALFREDO TIFI
On the right track
Great guessing! You are certainly thinking along the right lines by suggesting that something in the air is responsible for the color change. You can find the solution to this mystery here. In addition, you can see the experiment you suggest - leaving the cleaner exposed to the air for longer periods of time - at this link.
Grocery Store Chemistry Rules Again
Great demo Tom. I love stuff you can buy at the grocery store; I'll bet it's fun to shop with you! Great way to spiral density back into the conversation as well.
In reply to Grocery Store Chemistry Rules Again by Amiee Modic
Thanks Amiee!
Grocery store chemistry is the best! Thank you for pointing out that density can be tied to this demonstration, too; I hadn't thought of that.
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