Objectives of Unit:
1. Convert between M, m, N, Mass % and Mole Fraction solution concentration expressions.
2. Explain exothermic and endothermic heats of solution.
3. List the factors that affect solubility (Henry's Law) and rate of solution formation.
4. Compare and contrast unsaturated, saturated, and supersaturated solutions.
4. Explain how the vapor pressure of a solution compared with the vapor pressure of a pure solvent.
5. Colligative properties --> Be able to explain the impact of a solute upon freezing point, boiling point, and osmostic pressure.
6. Apply colligative properties equations to solve for change of boiling and freezing points, molality of solutions, molar mass of solutes, and osmotic pressures.
7. Apply Raoult's Law. Interpret a negative or positive deviation from Raoult's Law.
*******EXCELLENT REVIEW QUESTIONS TO PROVE YOU
KNOW THIS CHAPTER*******
Unit Summary and Visuals
Colloid vs. Suspension vs. Solution
NMSI Solution Notes and Sample Problems
KEY for Unit Review Multiple Choice Questions and Problems
SOLUTION CONCENTRATION EXPRESSIONS:
1. Factors that Affect Solubility
2. Vapor Pressure Lowering
3. Colligative Properties
Tutorial Video by other AP CHEM Teachers ("flipped classroom" - J. Bergman) -
1) FACTORS THAT AFFECT SOLUBILITY (energetics of soln formation)
2) SOLUTION VAPOR PRESSURE (colligative properties)
Skip over intro (a bit silly) - begin at 1:00 minute
3) SOLUTION TERMS and CONCENTRATION EXPRESSIONS
Two videos - Examples of calculations