Lake Superior State University

School of Environmental and Physical Sciences

Department of Chemistry

GENERAL CHEMISTRY II

CH 116, Summer 2004

Dr. David Myton Chemistry Office: CRW 311 Phone: 2341

School of Education Office: STH Phone x2349 email dmyton@LSSU.edu

Summer Session Office Hours: Mon to Thur 9:00 am to 11:00 am, and by appointment (call x2811)

Course Description: CH 116 General Chemistry II (4 semester credits)

General Chemistry is the second semester of the university level course for students pursuing further study in science. This course continues to emphasize the integration of concepts and applications with factual information and to stress approaches to both conceptual and numerical problem solving in both lecture and laboratory. Throughout the course, chemistry will be used to understand everyday phenomena, to evaluate the risks and benefits environmental issues, and be related to other disciplines.

Prerequisite:

CH115 General Chemistry I with a grade of C or better. (This course with its associated laboratory has been approved to meet the General Education science requirements.)

Access to the course websites found at http://webcta.lssu.edu and at http://education.lssu.edu/myton

Textbooks:

Lecture: CHEMISTRY, 7^th Edition. Chang, McGraw-Hill Publishing, 2002.

Lab: Modular Chemistry Laboratory activities from Chemical Education Resources.

Other Required Materials:

Ø Homework: ChemSkill Builder: Personalized Problem-Sets in General Chemistry. Version 6.3 for Windows, CSB/Win CD set or 3-Disk set. James Spain and Harold Peters Disk or Online

Ø Chemical Splash Goggles, must be indirectly vented with plugs INSTALLED

Ø A NON-PROGRAMMABLE SCIENTIFIC CALCULATOR is required for exams

Optional: [Just for the record the following items are NOT optional: Reading the chapter, studying the example exercises, and working through the chapter problems, handouts, homework, and availing yourself of the assistance and support of the instructor.] What is optional is if you want a laboratory apron and gloves, Student Study Guide, Student Solution Manual or a new titanium mechanical pencil.

Topics Covered: (Expanded course objectives are available in a separate document for each chapter)

Ø Chang Ch 12: Solutions and their Behavior
CSB Homework: Units 15.1 - 15.5 inclusive
Learning Objective: Be able to calculate solution concentrations in units of molarity, molality and weight percent, calculate changes in colligative properties, and use enthalpy and LeChatelier's principle to explain the behavior of solutions and gases.

Ø Chang Ch 13: Chemical Kinetics
CSB Homework: Units 16.1 - 16.6 inclusive
Learning Objective: Be able to use experimental data to calculate and manipulate rate expresions for chemical reactions including changes in concentration and time. Use collision and kinetic theories to explain chemical kinetics.

Ø Chang Ch 14: Chemical Equilibria
CSB Homework: Units 17.1 - 17.5 inclusive
Learning Objective: Be able to use the equilibrium constant expression to analyze chemical systems and calculate the concentrations involving products and reactants, including the application of LeChatelier's principle in equilibrium systems.

Ø Chang Ch 15: Acids and Bases
CSB Homework: Units 18.1 - 18.5 inclusive
Learning Objective: Be able to calculate the concentrations and pH of solutions of weak acids and bases using equilibrium constant expressions, and identify acids/bases and their conjugates.

Ø Chang Ch 16: Equilibria with More Acids and Bases
CSB Homework: Units 19.1 - 19.5 inclusive
Learning Objective: Be able to solve for the pH of a buffered system as well as the concentrations of chemical species at any point in an acid/base titration

Ø Chang Ch 17: Precipitation Reactions
CSB Homework: Units 20.1 - 20.5 inclusive
Learning Objective: Be able to use the solubility product constant expression to calculate the concentration of species at equilibrium, identify separation procedures using solubility, and solve common-ion problems.

Ø Chang Ch 18: Entropy, Free Energy & Equilibrium
CSB Homework: Units 21.1 - 21.5 inclusive
Learning Objective: Be able to calculate thermodynamic values from chemical systems including H, S and G, using them to predict the direction of chemical change.

Ø Chang Ch 19: Electrochemistry
CSB Homework: Units 10.4 - 10.6 and 22.1 - 22.5 inclusive
Learning Objective: Be able to identify chemical oxidation and reduction, balance redox reactions and calculate cell potentials for standard and nonstandard conditions, and relate Gibbs Free Energy to cell potentials and equilibrium constants

Ø Chang Ch 23: Nuclear Chemistry
CSB Homework: Units 23.1 - 23.4 inclusive
Learning Objective: Be able to write and balance equations for nuclear reactions, calculate half-lives for nuclear decay reactions

Other:

Class/Laboratory Schedule: Class meets fifty minutes three times a week plus a 2-hour final during finals week, Lab meets two hours and fifty minutes each week through a 14 week semester. During the summer session times will vary, and course content is accelerated, but total class and laboratory time remains the same.

This course serves as prerequisite to the following courses: CH220 Survey of Organic Chemistry, CH225 Organic Chemistry I, CH231 Quantitative Analysis, CH361 Physical Chemistry I, BL204 Microbiology, BL220 Genetics, BL315 Plant Physiology, BL330 Animal Physiology, BL345 Limnology

Course Coordinators: Myton

Grading: Course grades will be derived from Assessments (not less than 80%) and Homework and Lab (up to 10% each). The laboratory work is a mandatory component for the course, a passing grade in the lab must be achieved to receive a passing grade in the course. Grading is progressive with later tests whose content is cumulative for the entire course, weighted more than earlier tests. Attendance at all class sessions is strongly advised, graded quizzes and in-class “Teamwork” assignments will be collected regularly for grading and attendance. Scantron forms and #2 pencil are required for each major test/exam. Missed exams cannot be retaken except in emergency or extenuating circumstances, schedule an early exam if an approved absence is unavoidable. The final cumulative exam is required. No grades are dropped or replaced, no extra credit is available. Full credit is available only to work completed by the assigned completion date, late work may be discounted or rejected. Course grades are broadly based on a 90% = A-, 80%= B-, 70% = C- scale referenced to an assigned maximum value.

Exams: Each student is advised to bring a personal calculation aid with them to every class, laboratory and test/examination (abacus, slide rule or calculator) - these cannot be shared during tests and should be capable of manipulating scientific notation, logarithms and exponents. Only NON-PROGRAMMABLE SCIENTIFIC CALCULATORS may be used during tests, quizzes and examinations.

Exam Dates: See course schedule – attached. Also, check the course website for additional information: http://webcta.lssu.edu You must have a university assigned password to initially login, whereupon you may enter your own unique password.

Homework: Success in General Chemistry is undeniably linked to the amount of time invested in learning the material and problem solving. In order to facilitate your mastery of chemical problem solving this course will use the CHEM-SKILL-BILDER system for the assignment of graded homework. This system provides you with immediate assessment of your performance, the opportunity to improve your homework grade, and a record of personal credit for time invested and work completed. Homework sets are due one day before the date of the exam covering that material from the chapters covered on that test - for example if the first test covers chapters 1 & 2 you are expected to have completed the disk sections assigned to chapters 1 and 2. Credit will be based on the number of sections completed at a mastery level of 80 percent or higher (No credit will be given for a unit 79.99% correct). Mastery level of 80% will contribute 5% to your final grade, above 85% - 10%, above 90% - 15% and above 95% - 20% to your final grade.

You are advised review the instructions contained in the package, to protect against computer viruses, and to make your own personal backup copy of your disk (especially the file studata.dat), and to print out the screen showing your progress after each session as extra insurance. Again, you will need to exercise NORMAL care to avoid bending the diskette, contracting a damaging computer virus, or spilling cheese dip onto your disk.

NOTE: additional graded homework may be assigned in class, with due date given at the time of the assignment. You might expect a graded quiz on the day the homework is due.

The Fine Print:

The LSSU Catalog/Calendar contains a more complete description of your rights and responsibilities as a member of the University community. In the Catalog/Calendar you will find a complete statement of our institutional purpose, definitions of university terminology, our Equal Opportunity policy, and especially the ACADEMIC POLICIES. Attendance: I expect you to attend and participate in class as a valuable and contributing member in the community of learners of which the course is comprised. Not every contingency leading to an excusable absence can be anticipated, and an occasional absence may reasonably be anticipated which requires special consideration. However, extended absences, even for valid reasons, preclude the student’s full and active participation in the course, in meeting the full objectives of the course and may lead to a non-passing or incomplete grade – even when other work is completed satisfactorily. NOTICE: A failing grade (F) can be assigned to students who commit acts of academic dishonesty. At the instructor’s discretion this grade may be for the assignment or the entire course depending on the nature and severity of the offense. Academic dishonesty includes but is not limited to cheating (the intentional use or attempted use of unauthorized materials, information or study aids in any academic exercise) , fabricating (intentional or unauthorized falsification or invention of any information or citation in an academic exercise), facilitating academic dishonesty (Intentionally or knowingly helping or attempting to help another violate any provisions of this code), or plagiarism (intentionally or knowingly representing the words or ideas of another as one’s own in any academic exercise). Definitions from the Code of Academic Integrity, University of Maryland at College Park. This syllabus is not intended to be a comprehensive statement, please be aware that other academic policies and procedures are outlined in the catalog and they apply to you as well. The course syllabus represents the best estimate and projection of course content, scope and sequence. In the case of extenuating circumstances, changes in enrollment, flood, fire or tornado, other Acts of God, by mutual consent, or at the discretion of the instructor, the course and lab syllabi are subject to change. Americans with Disabilities Act: In compliance with Lake Superior State University policy and equal access laws, disability-related accommodations or services are available. Students who desire such services are to meet with the professor in a timely manner, preferably the first week of class, to discuss their disability-related needs. Students will not receive services until they register with the Resource Center for Students with Disabilities (RCSD). Proper registration will enable the RCSD to verify the disability and determine reasonable academic accommodations. RCSD is located in South Hall office 206, extension 2355.

Laboratory: Chemistry is an experimental science. You are encouraged to think independently about the data you collect and you will not be graded solely on whether you acquire the right number or deduce the correct explanation, but rather whether your explanations and hypotheses follow logically from the data and that your reasoning is clearly stated. In the laboratory component of this course students may OCCASIONALLY work together in teams of no more than two, as directed by the instructor. Each student team member is responsible for assuming an equal share of the lab responsibilities and work load. Students are to prepare the pre-laboratory assignments before coming to lab, and to complete and turn in their own laboratory reports as assigned. Students are advised to read the laboratory procedures and carefully plan their work to maximize efficiency and guarantee success. If you must be absent from a laboratory session you should contact your laboratory instructor and attend one of the other sessions that has available space within the next week. You may not work alone in a laboratory. Missed labs cannot be made up after the end of the week following the scheduled lab – nor after Thursday of the last week of summer session.

Section Day/Time Instructor Office / phone

CH116 00A Mon - Thurs 2-4 pm D. Myton CRW311 / x2431

Text: Modular Laboratory Program in Chemistry, Chemical Education Resources

Laboratory Schedule: (listed by anticipated order of completion – see schedule)

1. Prop 500. Determining Molar Mass by Freezing Point Depression.
2. Kine 505. Studying the Rate of the Reaction of Potassium Permanganate and Oxalic Acid.
3. Anal 359. Spectrophotometric Analysis of Permanganate Ion Solutions.
4. Equil 441. Evaluating the Equilibrium Constant for the Reaction of Iron(III) Ion with Thiocyanate Ion.
5. Equil 494. Monitoring Acid-Base Titrations with a pH Meter.
6. Equil 443. Studying the Effect of Buffering on the Resistance of a Solution to pH Change AND
7. Anal 902. Analyzing the Acetic Acid Content of Vinegar.
8. Equil 308. Solubility Product Constant of Lead(II) Iodide.
9. Equil 453. Determining the Equivalent Mass and Dissociation Constant of an Unknown Weak Acid by Titrimetry.

10. Anal 416. Determining the Percent Sodium Hypochlorite in Commercial Bleaching Solutions.
11. Elec 224. Determination of the Molecular Mass of Lead by Electrolysis.

12. Anal 427. Quantitatively Determining the Acid Content of Fruit Juices.

Other labs as assigned:

13. Prop 507. Determining Molar Mass by Freezing Point Depression in Naphthalene.
14. Kine508. Studying the Kinetics of a Chemical Reaction

Safety in the Laboratory

While working in the laboratory you are expected to comply with the safety rules which follow, any and all rules posted in the laboratory or as established by your instructor. Violations of the safety rules endanger both you and others in the laboratory. Students who violate the established rules and procedures may be subject to warnings, reductions in grade, or expulsion from the lab. Safety rule violations include but are not limited to the following. (Consult your laboratory instructor for specific directions regarding the laboratory activities each week and for specific information regarding the hazards and precautions required in each laboratory session.)

1. What is not explicitly allowed in the lab – it is FORBIDDEN! Always ask your instructor prior to engage to any not described in your lab book activity.

2. Not wearing appropriate safety goggles for the activities assigned. NOTE: some activities such as pouring and mixing concentrated reagents require the use of SPECIAL chemical splash goggles and perhaps other personal protective equipment. Consult your instructor and always use the highest level of protection available and appropriate for the task assigned.

3. Smoking, eating, or drinking in the laboratory.

4. Pipetting by mouth or otherwise handling chemicals unsafely. Using an open flame to heat flammable liquids.

5. Not working under a fume hood when directed to do so.

6. Failing to report or clean up chemical spills or broken equipment. Special spill kits are available in the lab to handle a variety of spilled chemicals.

7. Disposing of chemicals improperly. ALWAYS consult the instructor for the proper handling instructions or location of the designated "USED CHEMICALS" container for the experiment.

8. Working alone in the laboratory or working outside the regularly scheduled lab times without permission.

9. Performing unauthorized experiments.

10. Engaging in horseplay or other behavior that jeopardizes your safety or that of others in the laboratory.

11. Failure to comply or adhere to guidelines and directives given by authorized university personnel