Final Exam ReviewSession 1: Chapters 13-15

Agenda

• Introduction• Announcements• Final Exam Review

Session• Regular SI session details

• Handout: naming organic compounds

• Key Concepts from Test 1

• Handout: Practice Problems from Test 1

• Closing

Disclaimer!

Anything covered in class (except for stuff after the end of the material for the final) is fair game. This review is meant to be a

review of what I think are the main points, as well as what I think y’all might

have forgotten by now or need to review. Some things have been omitted that I

doubt she will ask about and that I think you still probably know, and therefore don’t need to review yet. However, I neither make nor see your final. So if something is on your final that I don’t

mention in these next few weeks, sorry! Make sure to study with your notes,

book, old exams, practice problems, etc., as well as with SI if you’d like.

ConceptsSolutions, Kinetics, Equilibira

Chapter 13 Concepts

• Know the properties of gases, liquids and solids and their differences on a molecular level.

• Know the terms relating to solutions (solvent, solute, homogenous, mixture, pure substance, dissolution vs. disassociation, etc.).

• Know the roles of intermolecular forces in solutions.

• Know the significance of enthalpy in solutions.

• Know what unsaturated, saturated, and supersaturated solutions are.

Chapter 13 Concepts

• Like dissolves like.

• Know the factors affecting solubility.

• Know the units for concentration.

• Know the colligative properties of a solution and how they change.

• Know what osmosis is.

• Know what colloids are.

Chapter 14 Concepts

• Know the definitions of kinetics, rate, and reaction mechanism.

• Know the factors that affect reaction rates.

• Know units for reaction rates.

• Know the difference between average and instantaneous reaction rates.

• Be able to understand a rate law and zero, first, and second order reactions.

• Be able to determine the rate law of a reaction.

• Understand the integrated rate laws for first, second, and zero order reactions.

Chapter 14 Concepts

• Know what a half life is and the differences in lengths of half lives for zero, first, and second order reactions.

• Understand both the collision model and reaction energy diagrams.

• Know how to use reaction mechanisms to determine the rate law of a reaction.

• Know what slow steps and fast steps are, and which type of step is the rate determining step.

• Know where intermediates and catalysts are in reaction mechanisms.

• Know how catalysts work.

Chapter 15 Concepts

• Understand the concept of chemical equilibrium.

• Know what the equilibrium constant is and what the general format of an equilibrium expression is.

• Know what the value of K means in terms of if reactants or products are favored.

• Know which phases are omitted from an equilibrium expression.

Chapter 15 Concepts

• Know the equilibrium constants associated with molarity, pressure, solubility.

• Know what partial pressures are.

• Know how to manipulate equilibrium constants.

• ICE TABLES!

• Know what Q is and what its value means.

• Know Le Châtlelier’s Principle.

Practice ProblemsTypes of problems you can expect that will require calculations.

Chapter 13

• Henry’s Law

• Raoult’s Law

• Boiling-Point Elevation

• Freezing-Point Depression

• Van’t Hoff Factor

• Osmotic Pressure

Chapter 14

• Average rate

• Writing a rate law using data from a table

• Half life for 1st, 2nd, or zero order reaction

• Use integrated rate laws

• Arrhenius equation

Chapter 15

• Calculate Kc from Kpand visa versa

• Know ALL the ICE tables!