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WSU CHEM 333 - Syllabus

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THREE STEPS of ERROR ANALYSIS1 Physical Chemistry L ab. 333-Syllabus Spring 2012 – Th 2:40 – 5:40 pm Fulmer 218---M ai n Lab Instructor: Louis Scudiero http://www.wsu.edu/~pchemlab Ful mer 261A, phone 335-2669 [email protected] TA: Angela Rudolph, Ful mer 147-Office hours:Tuesdays 9-11 AM [email protected] TEXT: Experiments in Physical Chemistry by Shoemaker, Garl and, and Nibl er; 6, 7 or 8th ed.; (McGraw-Hill) HANDOUTS and a few short VIDEO CLIPS of the experiments listed below are available at \\Diamond3\Instruction\PChem\Chem 333 that you can access by going to Start then run. Type \\diamond3\Instruction\Pchem\. You will be prompt for an id, type ad\yourname and then enter your password. EXPERIMENTS: You are required to complete seven (7) experi ments from the list on the back page of this handout. The f i ve (5) experi ments in bold are mandatory and every student has to schedule a date to perform them. The l ast two (2) can be chosen from the list (seven experi ments not in bold). REPORTS: Your reports will consist of three types: (1) ORAL REPORT (1): This will be presented to me, the T.A. and peers. (See instructions at http://www.wsu.edu/~pchemlab). It must be scheduled with me and will be given at the end of the semester (April 19& 26 fr om 3 to 6PM in Fulmer 124). Each student can do an oral on any one experi ment from the list. It should be cl eared and schedul e wi th me or the TA. (2) WRITTEN REPORT (1): This should be written as if it is going to be published. Use the format in Chapter I of Shoemaker, Garland, and Nibler or look in the Journal of Physical Chemistry (B or C). The report will be graded and returned to you for revisions bef ore a f i nal score i s gi ven so i t should be done on a computer. It is due before or at 5 PM on March 09 (No l ate reports will be accepted). (3) REPORTS IN “ NOTEBOOK” (5): These reports should be written up in a notebook or save on your personal computer. Submit a carbon copy of your notebook or a print out from your computer for grading. They should include anything that would help you to repeat the experiment in the future. (Eg. Raw data, cal cul ati ons, ref erences, di f f erences i n the experi ment, etc.) They are due two (2) weeks af ter the exper i ment i s f i ni shed. They ar e NOT group reports, each student needs to write his/her own notebook report (not a copy of the lab partner’s report). SCHEDULING: Use the si gn-up sheet posted in the hall outside the Laboratory (room 219) to reserve an experi ment. Sign up each week for the following week laboratory. ATTENDANCE: You are required to be present at three laboratory periods duri ng the semester; January 12, April 19&26, and April 12, 2012. These days are the check-in, oral presentation, cl ean-up and check out days. RECORD BOOK: A notebook is requi red. The notebook can then be kept while the reports are being graded. You must keep it current during the experiments and the data must be dated and initialed by the T.A. or myself as soon as the experiment is done and attached to the report that is submitted for grading. (This is your responsibility.) GRADING: Oral Reports 20% Written Reports 20% Reports in Notebook 50% Laboratory Habits + online Eval. 5 + 5%2 EXPERIMENTS--CHEM 333 (Numbers and pages ref er to Shoemaker, Garl and, and Ni bl er) Bol d exper i ment s ar e r equi r ed THERMOCHEMICAL EXPERIMENTS Exp Title Room Text/Handout [Setups] {Students} 6 Heats of Combustion 234 p.152, handout [2] {2} 9 Heats of Solutions 234 handout [1] {1} 10 Freezing Point Depression - MW Determination of Sucrose 232 handout [2] {1} EQUILIBRIUM AND PHASE EXPERIMENTS 12 DSC of Phase Transition (CuSO4.5H2O) 232 handout [1] {1} 13 Vapor Pressure of a Pure Liquid simulation 234 p.199 [4] {1} 15 Binary Solid-Liquid Phase Diagram (Bismuth/Cadmium) 218 p.215, handout [1] {1} KINETIC EXPERIMENTS D H2O2 Catalysis by I- 234 handout [2] {2} LIQUID EXPERIMENTS 14 Cross-sectional Area of a Film (Surface Tension Measurement) 218 p.292, handout [1] {2} 30 Dipole Moment of Polar Molecules in Solution 234 p.336, handout [1] {2} ELECTROCHEMICAL EXPERIMENTS 16 Transference of Ions: Moving Boundary Method 234 handout [1] {1} PROPERTIES OF GASES 1 Joule-Thomson Effect 1A: 2:50 - 4:15PM 1B: 4:15 – 5:40PM 234 p.96 [1] {1} 2 Heat-Capacity Ratios for Gases - Adiabatic Expansion 234 p.107 [1] {1} * Numbers in square brackets [n,s] show whether you will work by yoursel f , n = 1, or as wi th a partener, n = 2, and how many experi mental set-ups exist for each experiment s = 1, 2. For example, you wil l work al one on experiment #15* but wi th a partner on experi ment #13 Students with Disabilities: I am committed to providing assistance to help you be successful in this course. Reasonable accommodations are available for students with a documented disability. Please visit the Disability Resource Center (DRC) during the first two weeks of every semester to seek information or to qualify for accommodations. All accommodations MUST be approved through the DRC (Admin Annex Bldg, Rooms 205). Call 509 335 3417 to make an appointment with a disability counselor. A cademi c I nt egr i t y: I encourage you to work with cl assmates on lab reports. However, each student must turn in original work. No copying will be accepted. Students who violate WSU’s Policy on Academic Integrity will receive an F for that report. Academic integrity is the cornerstone of the university. Any student who attempts to gain an unfair advantage over other students by cheating, will fail the course. You must do your own work.3 THREE STEPS of ERROR ANALYSIS 1. Bef or e t he exper i ment , predict the approximate size of errors using the “propagation of errors” method; it gives the value of δ you can hope for when reporting your result: X ± δ. This helps to “design” the experiment: which measurement or procedure contributes most to δ? –That’ s the one to recei ve caref ul attenti on. 2. During the experiment, make enough measurements so that stati stical analysis can provide a measur e of the errors or uncertainties. This is the number that should follow your reported measured value: X ± e (don’ t use δ). I t may be as si mpl e as maki ng dupl i cate measurements so that an average, X , and standard devi ati on, e, can be computed, or it might require another statistical method such as


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