ࡱ> }|[ /bjbj  4pa!\pa!\'T T $4V48(````;*e qm3o3o3o3o3o3o3$468h3y;;yy3``3.OOOyf``m3Oym3OO 12` :1Y33V41R9,R9,2R92yyOyyyyy33E yyyV4yyyyR9yyyyyyyyyT > : Chemistry 112 Lab02 Fall 2008 InstructorOffice and HoursLecture Dr. Tilly Wang 310.243.3388  HYPERLINK "http://chemistry.csudh.edu/faculty/twang/" http://chemistry.csudh.edu/faculty/twang/ NSM B304, twang@csudh.edu Thursday 1-3.45pm NSM B352 Lab web site: located at the course BlackBoard via my.csudh.edu Chemistry Department Laboratory Help Pages:  HYPERLINK "http://proton.csudh.edu/laboratory/labintro.html" http://proton.csudh.edu/laboratory/labintro.html Lab Text: General Chemistry Laboratory Manual (CSUDH Chemistry Dept), available from campus bookstore Various Handouts from Instructor Required Supplies: Bound laboratory notebook (the kind with duplicate pages; you may use your Chem 110 notebook if there is room); if not in bookstore, buy one online. Dont wait until the last minute to get this notebook or youll be sorry! Laboratory safety goggles, available from bookstore or hardware store. Calculator Graph Paper (at least 10 pieces; needs to have 10 subdivisions per division; download free graph making software from http://pharm.kuleuven.be/pharbio/gpaper.htm) Laboratory Course Objectives: To supplement the course theory with hands-on experiments which demonstrate and reinforce the theory. To familiarize the student with the logistics, mechanics, and choreography of general laboratory procedures. To train the student in the art of scientific observation and objective data evaluation. Laboratory Activity Schedule (subject to revision if necessary to synchronize with lecture) Week of:Planned Laboratory ActivitySept 2Check in, Safety, Course ObjectivesSept 9Molecular Weight by Freezing Point DepressionSept 16Iodination of AcetoneSept 23Le Chateliers PrincipleSept 30Qualitative Analysis Group I CationsOct 7Conjugate Acids and BasesOct 14Equivalent Weight and Ka of an AcidOct 21Solubility Products of Lead IodideOct 28Qualitative Analysis Group III CationsNov 4Voltaic CellsNov 11No lab T or Th due to Veterans Day. Nov 18Synthesis of a Coordination CompoundNov 25No lab T or Th due to ThanksgivingDec 2Hydrolysis of an Ester, part 1Dec 9Hydrolysis of an Ester, part 2 PTE Evaluations, Check Out. Grading Policy: You do not receive a letter grade in this lab course. Instead, your lab grade is worth 150 points of your Chem112 grade, and you must earn a minimum score of 70% in the laboratory to pass Chem 112. Attendance: 20% of lab grade (30 points) You must attend all labs, because all labs must be performed, and no labs may be made up. If you are verifiably sick, have a verifiable emergency, have a known conflict for which you notify me in advance, you will be given an assignment in place of the missed lab. If you miss lab under any other circumstance without prior consultation with me, this is an unexcused absence. In such case you will lose your 20%, and you will receive a zero for the missed lab, plus you will have to complete a substitute assignment to have any chance of passing. Attendance is monitored from the notebook copies you turn in from your lab experiment. If you forget to turn in your notebook copy, you will lose attendance points. Preparation of pre-lab: 10% of lab grade (15 points): You must be ready to perform your laboratory experiment. This means that by 1pm, you must have an outline or plan written in your notebook, with a table or space for observations and data. You show me your plan, I initial it, you get points for being prepared. You may not start an experiment until you show me your prelab. Do not copy the entire content of the lab manual into your notebook. Condense the procedure into steps or sections using your own words, and leave room in that section for recording your data and observations. Performance of lab experiments and turning in reports: 70% if lab grade (105 points) 11 experiments, graded as 10 points each for completion of all experiments and submission of all assignments (see student deliverables); minus 1 point for each safety violation; minus 1 point if youre caught writing data somewhere other than your notebook, minus 2 points for each day of late deliverables. Experiment average will be applied to the number of possible points to derive the performance part of the lab grade. What to do for each lab, besides the experiment: For every lab, you must write the following things in your notebook and turn a copy in at the end of the lab experiment: experiment plan, reagents used, unknown # (if any), all data and observations. For some of the experiments, your instructor will instruct you to turn in your calculations/exercises at the end of the lab. You turn in the carbon copy from your notebook at the end of the lab section. Use only pen to write in your notebook, and do not use correction fluid or erasers to correct mistakes. A report consists of the deliverables described at the end of each experiment in your lab text, in addition to answers to the exercise questions. Follow the guidelines for reports at the beginning of the lab manual: 50-75 word description of the experimental procedure, tabular presentation of data, graphs, drawings, calculation sample, 75 word descriptions of experimental results, possible sources of error if applicable, and answers to exercise questions. Safety: You are required to follow the safety rules in your laboratory text. The instructor may deduct points from your lab report grade, require a safety report/essay, dismiss you from the laboratory exercise, or dismiss you from the course, if you do not comply with these safety rules. Please note that you will not be allowed to work in the laboratory without eye protection or without closed shoes. You can keep your safety glasses in your lab locker so you dont forget them. If you tend to wear sandals, shorts, or skirts to school, keep a pair of shoes and some pants or sweats in your locker to wear during lab. No make up labs: No make-up labs are planned. This means you must attend every lab session and arrive on time. The instructor reserves the right to make exceptions in extreme cases (such as documented medical emergencies, car accidents). Academic Integrity This laboratory course will be conducted with the utmost attention to academic integrity. Refer to the CSUDH Catalog for the Universitys Regulations and Policies regarding academic integrity. Academic Integrity basically means that dishonesty -- lying, cheating, and stealing -- is not allowed. Academic Dishonesty of any sort will not be tolerated in this lab, and will result in a grade of F for the laboratory. Examples of Academic Dishonesty in the chemistry lab includes, but is not limited to: Dry Lab creating data without actually performing the experiment, reporting data that you did not see Sabotage messing with another someone elses experiment or supplies, as a joke or for malice Copying another students laboratory report, using another authors content without attribution Stealing of chemicals, glassware, supplies Using data from a prior course Fall 2008 Chemistry 112 Lab Activities/ Student Deliverables Chart Week ofPlanned Laboratory ActivityStudent DeliverablesChemistry ConceptsLab Skills/ TechniquesSept 4Check in, Safety, Objectives Sept 11Molecular Weight by Freezing Point Depression-Prelab -Copy of data collected from this labcolligative properties, mole fraction, proportionality constantweighing, thermometry, heating, timed -data recordingSept 18Iodination of Acetone-MW report -Prelab -Copy of data collected from this lab kinetics, reaction rate, rate law, activation energy, concentrationvolume measurement, timing, observation, temperature controlSept 25Le Chateliers Principle-Iodination report -Prelab -Copy of data collected from this labequilibrium concepts, acid-base, solubility, complex ionobservationOct 6Qualitative Analysis Group I Cations-Prelab -Prelab -Copy of data collected from this labsolubility, reactionsPrecipitation, centrifugation, decantation, separation, observationOct 11Conjugate Acids and BasesQualitative Analysis Group I Cations lab report -Prelab -Copy of data collected from this labpH, properties of acids/bases, buffers, molaritypH measurement, volumetric measurementOct 16Equivalent Weight and Ka of an AcidConjugate Acids and Bases -Prelab -Copy of data collected from this labequivalent weight, dissociation constant, neutralization, equivalence point, end point, molarity, normalitypH measurement , titration, weighingOct 23Solubility Products of Lead IodideEquivalent Weight and Ka of an Acid lab report-Prelab -Copy of data collected from this lab saturation, solubility product, reactions, absorbancecolorimetry, standard curve preparationOct 30Qualitative Analysis Group III CationsSolubility Products of Lead Iodide lab report -Prelab -Copy of data collected from this labsolubility, reactionsPrecipitation, centrifugation, decantation, separation, observationNov 6Voltaic CellsQualitative Analysis Group III Cations lab report -Prelab -copy of dataoxidation-reduction reactions, half-reactions, electrochemical cell, anode, cathode, cell potential, Nernst Equationelectrochemistry, potentiometryNov 13No lab T or Th due to Veterans Day. Lecture will still meet on Th. Nov 20Synthesis of a Coordination CompoundVoltaic cells lab report -Prelab -Copy of data collected from this lab Limiting reagent, percent yieldCrystallization, filtrationNov 27No lab T or Th due to Thanksgiving Day. Lecture will still meet on T. 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