Mr. Duell

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Miss them already!
HCl and NaOH drops on either end of a tube filled with universal indicator. So. Cool. #duellchem
Collision Theory at its finest! #duellchem
The buzz of the lab 👨🏼‍🔬 #duellchem
I love my colleagues 😀
Concept-mapping our solutions unit 😀
Made some homemade pickled red cabbage today. Red cabbage juice is a natural pH indicator: pink in acid, blue-green in base. We’ll play with this stuff in class soooon. (Tenley approves) #duellchem
Part of life is learning how to manage the stress that can sometimes feel like NaCl(aq) boiling and bubbling within. Consider making lists with an app like @todoistofficial or with plain old pen and paper...or I suppose you could go for a dunk in an ice-water bath. 😆 #notanad #duellchem
Today, we started working on building a solubility curve for sodium nitrate. 🤓 #duellchem
Writing letters to magical Geneseo’s newly-accepted chemistry students this morning. 👨🏼‍🔬❤️ @sunygeneseo #proudalum
Calorimeter Lab today!

If we burn a food item so all the heat released enters a sample of water, we can track the temperature change in the water and determine how many calories/gram are contained in the food. Which one is your guess for the highest caloric content per gram: Marshmallows, Cheetos, or Popcorn?
Two reactions here! One is the combustion of hydrogen gas...and the other is Cheyenne’s FACE! 😯😁 🔥