Introduction to solubility, including a discussion of intermolecular forces.
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Concentration
Concentration = quantity of solute ÷ quantity of solution. This lesson focuses on concentration calculations (V/V, W/W, W/V, ppm, ppb, mol/L).
41
Molar Solutions
Making molar solutions from solids – procedure and calculations. (Note: brief lab activity.)
42
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Making molar solutions from liquids – similar to molar solutions from solids except pipettes are used to measure moles (via volume). (Note: brief lab activity.)
43
Net Ionic Equations
Writing net ionic equations by breaking salts into ions: e.g. MgCl[SUB]2[/SUB](aq) really means Mg[SUP]2+[/SUP](aq) + 2Cl[SUP]–[/SUP](aq).
44
Solubility Rules
Today's lab involves a series of double displacement reactions that yield precipitates. Results are summarized as a series of solubility rules.
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Solubility Curves
Students investigate the solubility of a chemical at different temperatures. Class data is plotted to create a "solubility curve".
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Water Treatment
Water treatment crossword puzzle.
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Solutions Stoichiometry
Extending the stoichiometry calculations from Unit 2 to include solutions.
Students investigate why some solutions conduct electricity but others do not.
51
Acids & Bases
Looking at acid/base properties, pH, the Arrhenius definition of acids and bases, and the Bronsted-Lowry concept. (Note: brief lab activity.)
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Neutralization
Writing and balancing neutralization reactions.
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Titration
Titration: the quantitative analysis of neutralization reactions. Note: teachers should spend time before the lab showing students how to set up and use equipment.
54
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Finishing yesterday's work. Students compete in a competition to see who is "best with a burette".
Introduction to gases, starting with a discussion of the Kinetic Molecular Theory. Students complete questions 1-10.
60
Boyle's Law
Students investigate the mathematical relationship between pressure and volume (i.e. Boyle's Law).
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Charles's Law
Finishing the Boyles' Law questions from last class. The second half of today's lesson is spent on Charles's Law.
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Combined Gas Law
Combining Boyle's Law and Charles's Law to get the "combined gas law".
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Weighing Gases Lab
How do you weigh a gas? In today's lab, students find out.
65
Partial Pressures
Dalton's law of partial pressures: the total pressure of a mixture of gases is equal to the sum of the pressure of individual gases.
66
Molar Volume Lab
In today's lab, students determining the "molar volume" of hydrogen gas.
67
Ideal Gas Law
The ideal gas law (PV=nRT), like the other gas laws, is used to calculate one unknown variable when all other variables are known. (Note: brief lab activity.)
68
Gas Stoichiometry
Extending the stoichiometry calculations from Unit 2 to include gases.
Students build models and draw diagrams of hydrocarbons: alkanes, alkenes, alkynes, and aromatics.
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Combustion
Students investigate the products of complete and incomplete combustion.
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Hydrocarbon Naming
Organic nomenclature follows a different set of rules than inorganic nomenclature. Students learn these rules and try several examples.
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Chemsketch
Students learn to use ChemSketch - a program for drawing organic molecules. A computer lab with ChemSketch installed is needed.
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Isomers & Polymers
Students build models of isomers (compounds with the same chemical formula but different structures) and polymers (long chains of carbon-containing monomers).
78
Alkanes and alkenes Lab
Comparing the chemical properties of alkanes and alkenes to illustrate the reactivity of a double bond. This is a lab, but it may be better as a demonstration.
79
Thermochemistry
Concepts related to thermochemistry are introduced, including calorimetry, heat capacity, molar heat of reaction, etc.
80
Candle Lab
Students determine the molar heat of combustion for paraffin wax, applying the concepts learned in yesterday's lesson.
81
Bond Energies
Using bond energies to predict the energy change when atoms rearrange themselves in chemical reactions.
