2. Learning Segment Topics
• Boiling Point Elevation/Freezing
Point
Depression, Molarity, Concentration
• Chemical/Physical Changes, Types
of Chemical Reactions, Equilibrium
http://equilibriumchemistry11.blogspot.com/2011/01/it-is-happy-new-year-with-touch-of.html
http://www.franklinregional.k12.pa.us/teachers/jracchini/scienceclassnotes.asp
http://www.chem.queensu.ca/people/faculty/mombourquette/firstyrchem/equilibrium/
3. Authentic Reading Ideas
• Molarity/Concentration
– Ions in drinking water, safety requirements, reports
– Concentration of pollutants in the ocean or salts in the ocean
– Blood work results, concentration of HDLs/LDLs, white blood cells, etc.
– Blood alcohol concentration
• Freezing Point Depression
– Amount of salt required to prevent roads from freezing at different temperatures
• Le Chatlier’s Principle/Altering Equilibrium
– Temperatures and pressures of industrial reactions
• Types of Chemical Reactions
– Stages in biological processes
– Industrial reactions
4. Learning Segment Experiment Ideas
• Molarity/Concentration
– Determining the molarity of Kool-Aid, then students get to drink it
• Solubility
– Making saturated solutions and observing effects of modifying temperature
– Dissolving rock candy
• Tying Concepts Together
– Give students an unknown salt, have them determine solutiblity/level of super
saturation at different temperatures, compare to solubility charts of known salts
to determine the identity
• Freezing Point Depression
– Adding salt to ice water to make ice cream
5. Learning Segment Experiment Ideas
• Physical/Chemical Changes
– CO2 bombs, dropping dry ice in soda bottles and putting the cap back on
• Reaction Rates
– Dissolve alka seltzer in water at different temperatures and time the reaction
• Types of Chemical Reactions
– Combustion in isopropanol
– Chemical reactions that evolve a gas and set off a rocket
– Reacting different metals with acids, observe evolution of gas
– Mixing solutions together to form precipitates
– Reacting pool chlorine with isopropyl alcohol
Editor's Notes
This theme applies the ideas of strong/weak acids, bases and salts to every day life. Several months are spent addressing these topics and this can be a weekly activity throughout all three units (strong acids/bases, weak acids/bases, and salts).
