Chemistry 2734 & 2734L Analytical Chemistry & Lab Fall 2013 11:00 am – 11:50 am MWF (Rogers 307) 1:15 pm – 4:05 pm MW (Rogers 216) Lecture: Lab: Lecturer: Office Hours: Office: Email: Dr. Royce Dansby-Sparks M 2:00-5:00 pm, TR 9:20-10:50 am, or by apt. Rogers 309, Phone # 706-864-1492 Royce.Dansby-Sparks@ung.edu Course Description: This course is designed to provide an introduction to kinetics, equilibrium reactions/calculations, thermodynamics, electrochemistry, and qualitative/quantitative analysis. The laboratory will stress elementary statistics and titrations and the use of instruments such as pH meters and spectrophotometers. Course Objectives: Upon successful completion of this course, students should understand: The process, apparatus, and operations of analytical chemistry; Fundamental calculations for analytical chemistry; Error and error analysis; Statistical analysis, evaluation, and treatment of data; Sampling, standardization, and calibration sets; Aqueous solutions and chemical equilibria; Classical methods of analysis including gravimetic and titrimetric methods; Acid base neutralization titrations; Electrochemical methods; Spectroscopic methods; Separations and kinetics. Corequisite: Analytical Chemistry Laboratory (CHEM 2734L). All students are required to be simultaneously enrolled in BOTH 2734 and 2734L. Materials: Lecture: Electronic version of the text - Analytical Chemistry 2.0, David Havey. The e-text will be the official text for the course and can be downloaded at not cost through the following link (also provided on D2L). http://www.asdlib.org/onlineArticles/ecourseware/Analytical Chemistry 2.0/Text_Files.html An older print version of this text is also available for those who do not wish to use the free digital version. It is significantly similar to the electronic version, but again the official version of the text is the electronic version listed above. Modern Analytical Chemistry, David Harvey, McGraw-Hill, 2000. ISBN – 0-07-237547-7 Lab: 1. Instructional Lab Write-ups will be provided on D2L 2. Cheap – permanent bound and reasonably lined - lab notebook (spiral not ok) when in doubt just ask me. 3. Safety glasses and calculator. Methods of Instruction: The laboratory portion of this course is graded separately from the lecture portion and is discussed in more detail below. However, concepts from laboratory might show up on in class quizzes and tests. Your understanding of the materials presented in the book and lecture will be evaluated by your performance on quizzes, two in-class exams, and a comprehensive American Chemical Society final exam. Grading: Percent total grade 35 % 25 % each 15 % In-class quizzes Hour Exams (2) Final Exam -Letter grades for the course will be assigned according to the following absolute scale: >90.0% - A 80.0-89.9% - B 70.0-79.9% - C 60.0-69.9% - D <60.0% - F -Grade cut-offs will be evaluated at the end of the semester and might be lowered if deemed necessary. Quizzes: Approximately 5 quizzes will be administered. Quizzes may or may not be announced. There are no make-ups for missed quizzes with the exception of previously arranged absences for University sanctioned events. Hour Exams: Two in-class exams will be given. A pen/pencil and calculator will be allowed for these exams. Each exam will be 50 minutes long and will be given during the lecture time period. Estimated coverage is listed below and will be confirmed several days before the exam. NOTE: Make-up exams will only be given for absences noticed/approved in advance and with instructor approval of documentation within two days of the exam. These exams may be different than the exams given in class. This means you MUST provide a documented and acceptable excuse, even if you would typically self-treat your illness. Final (ACS standardized) Exam: The American Chemical Society (ACS) standardized analytical exam will be given during the final exam period. The ACS exam is a cumulative multiple-choice test and covers topics typically discussed in an analytical chemistry course. Please take this exam very seriously; it is worth 15 % of your grade! The decision on how to treat the final exam scores will be decided only after looking at statistical data for the exam and class performance. Academic Integrity Policy: Honor Code: “On my honor, I will not lie, cheat, steal, plagiarize, evade the truth or tolerate those who do.” Suspected violations of the Academic Integrity policy should be referred by students to the instructor. If the instructor concludes that a violation of the Academic Integrity policy has occurred, the instructor will either (1) penalize the student and file an incident report with the Academic Integrity Council and/or (2) refer the matter directly to the Academic Integrity Council. If the instructor files an incident report, the instructor will review the completed report with the student and will request that the student sign the report as an indication that the student is aware of the contents of the report. Any violation or attempted violation will result in an F for the course. Attendance Policy: Regular attendance will be essential to obtaining a satisfactory grade in this course. Official University policy states that attendance is mandatory. Attendance will be officially tracked during the University’s role verification process. After this time, it is the responsibility of the student to ensure success in the course by regularly attending lectures. Students will be responsible for obtaining any missed course content from their peers and zeros will be given for any in-class assignments that are missed during an absence, except as noted above. However, North Georgia policy states that an instructor can assign a WF and remove any student who has missed 14% or more of the course. Cell Phones: All cell phones should be set to vibrate during class. Adult-like judgment and behavior will be rewarded with adult-like treatment in this area. Any student participating in disruptive activities will be asked to leave the class immediately. Accommodations for Students with Disabilities: This university is committed to equal access to its programs, services, and activities, and welcomes otherwise qualified students with disabilities. Students who require accommodations and services must register with Disability Services and submit supporting documentation. Disability Services provides accommodation memos for eligible students to give to their instructors. Students are responsible for making arrangements with instructors, and must give reasonable prior notice of the need for accommodation. Contact Information for Disability Services: Dahlonega Campus: Thomas McCoy, Assistant Director, tmmccoy@northgeorgia.edu Stewart Student Success Center, Room 313, 706-867-2782. Supplemental Syllabus Information: Students are expected to refer to UNGs online supplemental syllabus for additional information: http://ung.edu/academic-affairs/policies-and-guidelines/supplemental-syllabus.php Chemistry 2734, Fall 2012 Lecturer: Dr. Royce Dansby-Sparks Tentative Lecture Schedule (subject to change) Week of: Aug 19 Aug 26 Sep 2 Sep 9 Sep 16 Sep 23 Sep 30 Oct 7 Oct 14 Oct 21 Oct 28 Nov 4 Nov 11 Nov 18 Nov 25 Dec 2 Lecture Coverage Introduction, Ch 1 – Fundamentals of Analytical Chemistry, & basic statistics Ch 2 – Units, Calculations, & Apparatus Ch 3 – Vocabulary of Analytical Chemistry Ch 9 – Part I – Titration Ch 4 – Evaluating Analytical Data /Errors Ch 4 – Errors/uncertainty Ch 4 – Statistics Ch 5 – Standardizing Analytical Methods & Exam 1 Text Ch 1 & 64-68, 95, & 114-115 Notes 8/23 drop/add ends 411-459 9/2 – no class 9/13 - Quiz 1 9/27 - Quiz 2 10/11 – Exam 1 10/14 - drop day 10/18 - Quiz 3 Ch 6 – Equilibria Ch 7 – Collecting & preparing Samples Ch 8 – Gravimetric Analysis & Ch 9 – Part II - Titration 11/1 - Quiz 4 Ch 10 – Spectroscopy Ch 10 & 12 – Spectroscopy cont. & Separations Ch 12 - Separations 11/22- Quiz 5 Fall / Thanksgiving Holiday No class Ch 11 - Electrochemistry 12/6 - Exam 2 Monday, December 9, 10:20-12:20 – ACS Standardized Final Exam Lab Conduct: Analytical Laboratory is an open format lab. You may complete the labs at your own pace and discretion between the hours of 8:00 am and 4:30 pm (2:00 on Fridays) and as long as there is a faculty member on the second floor. Because things always take longer than expected, do not start any new trials or experiments after 4:00 pm or 1:30 pm on Fridays. Lab reports are due according to the schedule that follows. There will be a deduction of 10 pts per business day (2:00pm cycle). In order to receive a grade for the 2734L course, you must participate and turn in a lab report for all experiments. This includes the lab checkout. If you do not turn in every lab and compete the checkout you will receive and F for the lab. Your final grade will be an average of all the lab scores on a standard 90-A, 80-B, 70-C, 60-D, <60-F scale. There are no dropped grades for lab. Unlike your general chemistry experience, your grade for lab depends on the quality of your results. Quantitative labs require repetitive trials of the experiment until you obtain the level of precision that you deem appropriate. All work submitted must be your own. No shorts, skirts, dresses or open toed shoes are allowed in the lab. Students violating the dress code will be asked to leave and a 10 pt deduction will be taken from the lab. Students who violate the dress code a second time will be given a zero for the lab but will still be required to complete the lab. Safety glasses must be worn at all times. You get one warning. The second violation will result in a 10 pt deduction, the third will result in a zero but you will still be required to complete the lab. If you are finished and wish to remove your glasses, leave the laboratory. No eating, drinking, smoking, or dipping in the lab. Dispose of chemicals as directed. Never put anything back into the reagent bottles or jeopardize the integrity of any chemicals used in the lab. Use common sense. You have an obligation to report any unsafe lab conditions or behavior. All solutions and chemicals must be properly labeled – this includes your initials or name, date, and contents. Any unlabeled containers will be disposed of. If I can tell whose material it is, that student will receive a 25 pt deduction. Second violation will result in a zero on the lab. Lab Notebooks and Reports: ALL trials should be reported. If you reject any data, you must justify that decision with a calculation. All work and calculations will be recorded in ink in your lab notebook. The results should be recorded as they are collected. If you make a mistake, strike it out with one line so it is still legible. All recorded work should be legible and logical (meaning clearly labeled and defined). Anything taped into your notebook should contain your initials, the date, and the page number (in case it falls out). Lab notebooks will occasionally be collected for spot checks and grading. The lab notebook check grades will count as a single separate lab grade. Final reports should be typed and turned in according the schedule below. Lab reports for weeks with multiple labs will have a single lab write-up. The final report MUST include in this order: 1. Title indicating the experiment name and number 2. Your name and date 3. Abstract – a succinct few sentence summary of the experiment and results obtained 4. Methods/Procedures - this should be detailed enough that I know exactly how and what you did. You should include all information on materials, chemicals, and equipment used. For example, it is essential that I know you used a volumetric cylinder rather than a beaker to measure a liquid. See below for more details on writing style. 5. Table of data – including ALL measurements (buret start and stops, weighing’s, etc). I should never have to ask you for your raw data if I want to check your calculations or data for trails. 6. All equations and all calculations. Calculations do not need to be typed unless you desire. It is acceptable to leave space and handwrite calculations. I only need to see one example calculation for repetitive calculations, after which all similar calculations can be entered in table format. Excel can be used for calculations as long as formula sheets are provided and all data is clearly laid out. 7. Table of results which should include a summary table of the applicable results and statistics 8. Conclusion - including comments and observations. The entire report should be written in past tense narrative style. This means you should not use pronouns. This is the style used to report results in scientific journals. Abbreviations can be defined for chemical substances on the first occurrence followed by the abbreviation throughout. Example: + - Tetra- n-octylammonium hydroxide (Oct4N OH ) free base was made by combining silver + oxide (Ag2O, 0.58 g) and Oct4N Br (1.4 g) in methanol (MeOH reagent grade, 10 mL) and stirring at high speed for 4 h. The solids were allowed to settle, and the solution was decanted and refrigerated in a tightly capped vial. Neatness is important. I cannot grade what I cannot understand or read. Someone should be able to come behind you and repeat (or grade) exactly what you did. However, having a complete notebook including all data collected and any pertinent notes collected in real-time is crucial. You must have documentation that you completed the experiment, otherwise it will be assumed that you did not. Not being able to provide proof of all data used in a lab report is grounds for an academic integrity violation. Chemistry 2734L, Fall 2013 Tentative Lab Schedule (subject to change) Week of: Aug 19 Aug 26 Sep 2 Sep 9 Sep 16 Sep 23 Sep 30 Oct 7 Oct 14 Oct 21 Oct 28 Nov 4 Nov 11 Nov 18 Nov 25 Dec 4th 2pm Exp# Description 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.1 2.2 2.3 2.4 3.1 3.2 4.1 4.1 5.1 Laboratory Check-in Preparation of 0.1 N HCl and NaOH Determination of the relative conc of HCl and NaOH Due Date 9/6 Standardization of NaOH Standardization of HCl 9/13 Determination of purity of KHP Determination of acetic acid content of vinegar 9/20 Determination of alkalinity of soda ash Titration of antacids Potentiometric titration of bicarbonate in water – groups of 3 9/27 Catch-up and study for Exam 10/4 --- Preparation of 0.1 N KMnO4 Standardization of KMnO4 10/18 Determination of an oxalate Determination of H2O2 Spectroscopy Lab – Beer’s Law Spectroscopy lab – Fluorescence detection of Riboflavin in Rockstar Energy Drinks Gravimetric determination of iron in an oxide ore Determination of iron continued Electroanalytical determination of Acetaminophen by CV – groups of 3 or 4 Fall / Thanksgiving Holiday Lab clean-up and check (entire lab grade is F if skipped) 10/25 11/1 11/8 11/22 12/4