Chemistry Lecture Demonstrations

Cartoon courtesy of
Jocelyn Chen and Laura Zmijewski.
Experiment Index
Demolab Calendar
Demolab Staff Schedule Index
Gas Laws
- Marshmallow and/or whipped cream vs Vacuum Desiccator
- Vibrating ball bearing / OHPr device (Physics Demo Lab)
- Helium filled balloon vs liquid nitrogen
- "John's Law" apparatus (courtesy Prof. Art Campbell)
- dV/dP device
- dT/dV(&P) device
Quantum Mechanics
- rope-a-dope
(physics B+25+10)
- Prof. Pines' purple whirly thing (or Lonnie's green whirly thing)
- gas discharge tubes w/Tesla coil
- HeNe laser/slit
- drum head video
- violin bow vs. metal disk
Spectroscopy
- ref: Dr. Mark Kubinec -- HeNe laser, tuning fork (w/mirror), sweep
audio amp, audio speaker
Catalysis
- MnO2 catalyzed decomposition of H2O2
- turnip/rutabaga peroxidase catalyzed decomposition of H2O2
- Platinum catalyzed reaction of 2H2+O2
Density
Chromatography - paper
Law of conservation of mass
Law of definite proportion
Law of multiple proportions
Limiting Reagent
Stoichiometry
- stoichiometric and non-stoichiometric mixtures of H2
and O2 in balloons;
explode, point out
difference in sound
Precipitation reactions
- Pb(NO3)2
+ K2CrO4
--> (see Shakhashiri vol. 1, p 286)
Acid-base reactions
- dry ice into cylinders of sl. basic, v.basic, and buffered solutions
containing universal indicator
Oxidation-reduction reactions
Gases
Enthalpy and calorimetry
Common
Ion Effect
Big
Game Titration
Hess's law
Kinetics
(next topic)