Lehman College City University of New York Department of Chemistry CHE 168 General Chemistry II Instructor Professor Marc S. Lazarus Office Hours: Wed. 10:00am-11:00am Office Location: Davis Hall 336 Telephone: 718-960-8843, e-mail marc.lazarus@lehman.cuny.edu Course Description CHE 168: General Chemistry II. 3 hours, 3 credits. Continuation of CHE 166 or 106: the presentation of the fundamental laws and theories of chemistry in considerable depth. PREREQ: CHE 166 or 104 and 106 (or equivalent as approved by the Chair). COREQ: CHE 169. The course meets on Tuesdays and Thursdays from 4:30pm to 5:45pm in Carman Hall Room B34. Place of course in degree program This course is a degree program requirement for the Chemistry, Biochemistry and Biology programs. This course is recommended to premedical, pre-veterinary, and predental students. Academic or Learning Objectives Students will: Demonstrate an understanding of the gas laws and how to apply those laws to chemical reactions. Describe intermolecular forces and their effects on the behavior of liquids and solids. Explain the different types of solids and their characteristics and be able to do calculations using cubic unit cells. Be able to explain phase diagrams. Demonstrate an understanding of the solution process. Be able to calculate and use the solution concentration units; molality, mole fraction, and weight percent to determine the magnitude of colligative properties of solutions. Understand rates of reaction and the conditions affecting rates including the collision theory of reaction rates and the role of activation energy. Relate reaction mechanisms and rate laws. 1
Understand the nature and characteristics of chemical equilibria and how to use K, the equilibrium constant, and Q, the reaction quotient, in quantitative studies of chemical equilibria. Use the Brønsted Lowry and Lewis theories of acids and bases. Recognize common monoprotic and polyprotic acids and bases, and write balanced equations for their ionization in water. Apply the principles of chemical equilibrium to acids and bases in aqueous solution. Do calculations involving the common ion effect and how it describes the functioning of buffers in aqueous solution. Apply chemical equilibrium concepts to the solubility of ionic compounds. Calculate the solubility of a salt in the presence of a common ion. Understand the concept of entropy and its relationship to reaction spontaneity. Calculate the change in entropy for system, surroundings, and the universe to determine whether a process is spontaneous. Use the Gibbs free energy to understand the connection between enthalpy and entropy changes and spontaneity. Understand the principles underlying voltaic cells Understand how to use electrochemical potentials to determine spontaneity of electrochemical cells. Use the Nernst equation to calculate the cell potential under nonstandard conditions. Explore electrolysis, the use of electrical energy to produce chemical change. Required Materials Text: J.C. Kotz, P.M. Treichel and J.R. Townsend, Chemistry & Chemical Reactivity, 7th Ed. Thomson, Brooks/Cole, 2009. This book is on reserve in the library. Scientific Calculator: Graphing Calculators and Cell Phone Calculators are unacceptable during exams. Only standard scientific calculators are acceptable. Course Requirements and Grading Each student s grade will be determined by counting each regular exam as 20% of the final grade and the final exam as 40% of the final grade. In the event a student misses a regular exam, the 20% for that exam will be included in the final exam. In other words, if a student were to miss exam 2 each of the remaining 2 exams would count for 20% each of the final grade and that student s final exam would count 60%. No make-up regular 2
exams will be given. No grades will be dropped and no extra credit assignments will be given. Technology and Blackboard A review sheet for each chapter of the text together with this syllabus is located on Blackboard. This can be accessed from the CUNY portal www.cuny.edu. We will go over how to access the site and find the review sheets during the first week of class. If you have any problems with your Lehman e-mail or Blackboard call the computer help desk at 718-960-1111 Attendance Policy Students should be present at every class. A student cannot miss more than one regular exam. Academic Integrity See the Lehman Undergraduate Bulletin. For more information refer to www.lehman.cuny.edu/student-affairs/documents/student-handbook-02.pdf. Course Topics Topic 1. Gases and Their Properties (Chap. 11) Topic 2. Intermolecular Forces and Liquids (Chap. 12) Topic 3. Solid (Chap. 13) Topic 4. Solutions (Chap. 14) Topic 5. Chemical Kinetics (Chap. 15) Topic 6. Chemical Equilibrium (Chap. 16) Topic 7. Acids and Bases (Chap. 17) Topic 8. Buffers and Solubility (Chap. 18, Skip 18.3) Topic 9. Entropy and Free Energy (Chap. 19) Topic 10. Electrochemistry (Chap. 20, Skip 20.1) 3
CHE 168 General Chemistry II Please Note: This schedule is subject to minor change so that course material can be best presented. All reading assignments are to be completed before class. Class Lecture Topic 1 Topic 1 - Gases and Their Properties. Gas Laws 2 Gas Laws and Chemical Reactions, Partial Pressures 3 Kinetic Molecular Theory, Diffusion and Effusion, Real Gases 4 Topic 2 - Intermolecular Forces and Liquids, Forces Between Polar Molecules and Nonpolar Molecules 5 Properties of Liquids 6 Topic 3 The Chemistry of Solids. Crystal Lattices and Unit Cells 7 Types of Solids, Phase Changes and Phase Diagrams 8 Topic 4 Solutions. The Solution Process and Solubility 9 Exam 1, Topics 1-3 10 Colligative Properties 11 Continue Colligative Properties 12 Topic 5 Chemical Kinetics. Rates of Reaction, Rate Laws 13 Integrated Rate Laws 14 Collision Theory and Activation Energy 15 Reaction Mechanisms 16 Topic 6 Chemical Equilibrium. Equilibrium Constant and Reaction Quotient 17 Calculations Involving Equilibrium Constants 18 Disturbing a Chemical Equilibrium 19 Topic 7 Acid Base Chemistry. Bronsted-Lowry Concepts of Acids and Bases 20 Auto ionization of Water and the ph scale, Equilibrium Constants for Weak Acids and Weak Bases 21 Exam 2, Topics 4-6 22 Calculations Using Acid and Base Equilibrium Constants, Lewis Concept of Acids and Bases 23 Topic 8 The Common Ion Effect and Buffers 24 Solubility Constant Calculations for Salts, The Common Ion Effect for Solubility 25 Topic 9 - Entropy and Free Energy. Entropy and Dispersal of Energy, Entropy Measurements, Entropy Change and Spontaneity 26 Entropy Change and Spontaneity Continued, The Gibbs Free Energy 27 Exam 3, Topics 7 & 8 28 Topic 10 - Electrochemistry. Voltaic Cells, The Nernst Equation Final Exam, Topics 1-10 4
Homework Assignments Chapter Homework Problems 11 1,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39,41,43,45,47,49, 51,57,61,63,65,67,71,75,79 12 1,3,5,6,7,8,11,13,15,17,19,21,23,29,31,33,39,41,43,45,47,49 13 1,3,5,7,9,17,19,21,22,27,32 14 1,3,5,7,9,13,17,19,21,23,25,27,29,31,33,35,37,39,41,43,45,47,51,53,57,59,61,63,69,75,79, 91,93,97 15 1,3,5,7,9,11,13,15,17,19,21,25,29,33,37,39,41,43,45,47,49,55,57,59,63 16 2,3,5,7,9,11,15,17,21,23,25,27,29,31,33,35,37,39,41,43,45,49,51,53,57,65,67,69 17 1,3,5,7,9,11,13,15,17,19,23,25,27,29,31,37,39,41,43,45,47,49,51,53,57,59,61,65,67,69,72,79,87,95 18 1,3,5,7,9,11,13,15,17,19,21,33,37,39,41,43,45,47,49,51,53,55,61,63 19 1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,33,35,37,41,43,45,49,53,55 20 7, 9,13,15,19,21,23,25,27,29,31,33,35,37,39,41,43,45,4751,53,55,57 In addition to the above Homework Problems, a Review Sheet will be available on Blackboard for each chapter of the text book. 5
CLASS SCHEDULE Class Date 1 T, 02/01/11 2 Th, 02/03/11 3 T, 02/08/11 4 Th, 02/10/11 5 T, 02/15/11 6 Th, 02/17/11 7 T, 02/22/11 8 Th, 02/24/11 9 T, 03/01/11 10 Th, 03/03/11 11 T, 03/08/11 12 Th, 03/10/11 13 T, 03/15/11 14 Th, 03/17/11 15 T, 03/22/11 16 Th, 03/24/11 17 T, 03/29/11 18 Th, 03/31/11 19 T, 04/05/11 20 Th, 04/07/11 21 T, 04/12/11 22 Th, 04/14/11 23 Th, 04/28/11 24 T, 05/03/11 25 Th, 05/05/11 26 T, 05/10/11 27 Th, 05/12/11 28 T, 05/17/11 Final Exam F-F, 05/20-05/27/10 Accommodating Disabilities Lehman College is committed to providing access to all programs and curricula to all students. Students with disabilities who may need classroom accommodations are encouraged to register with the Office of Student Disability Services. For more information please contact the Office of Student Disability Services, Shuster Hall, Room 238, phone number, 718-960-8441. 6
The Science Learning Center (SLC) The Science Learning Center (SLC) is a tutoring center on campus. The SLC provides drop-in tutoring for natural and computer science courses. To obtain more information about the SLC please visit their website at www.lehman.edu/issp, or call 718-960-7707. 7