Chapter 15: Solutions
Purpose
Behavior of solutions can be explained by interactions at the particle level. Solutions concentrations can be
understood by looking at molar relationships.
A and B
4/20 and 4/21
4/22 and 4/23
4/24 and 4/27
4/28 and 4/29
4/30 and 5/1
In-Class
 Chapter 15 Notes
 Go over Chapter 15
Worksheet #1
 Lab – HCl Concentration
 Go over Chapter 15
Worksheet #2
 Practice SOL
 Go over Chapter 15
Worksheet #3
 Chapter 15 CCC
HW Assignments
 Chapter 15 Worksheet #1
 Chapter 15 Worksheet #2
 Go over Chapter 15 Review
Sheet
 Chapter 15 Test
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 Chapter 15 Worksheet #3
 Chapter 15 Review Sheet
Vocabulary
homogeneous
heterogeneous
mixture
soluble
aqueous
solubility
solution
molarity
molality
mole fraction
solute
solvent
saturated
unsaturated
supersaturated
colligative property
diluted
concentrated
By the end of this Topic, you should be able to demonstrate proficiency in the following areas:
Essential Understandings
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Molarity = moles of solute/ L of solution
[ ] refers to molar concentration
When solutions are diluted, the moles of solute present initially remain.
The saturation of a solution is dependent on the amount of solute present in the solution.
Solutions can be a variety of solute/solvent combinations: gas/gas, gas/liquid, liquid/liquid,
gas/solid, liquid/solid, or solid/solid.
Polar substances dissolve ionic or polar substances; nonpolar substances dissolve nonpolar
substances. The number of solute particles changes the freezing point and boiling point of a pure
substance.
A liquid’s boiling point and freezing point are affected by changes in atmospheric pressure. A
liquid’s boiling point and freezing point are affected by the presence of certain solutes.
Essential Knowledge, and Skills
In order to meet this standard, it is expected that students will
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Perform calculations involving the molarity of a solution, including dilutions.
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Interpret solubility curves.
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Examine the polarity of various solutes and solvents in solution formation.
SOL Standards
CH.4 The student will investigate and understand that chemical quantities are based on molar relationships.
Key concepts include
c) solution concentrations;