Experiment 3 Rubric – Formal

.docx

School

University of Illinois, Urbana Champaign *

*We aren’t endorsed by this school

Course

237

Subject

Chemistry

Date

Jan 9, 2024

Type

docx

Pages

Uploaded by AgentMoon8495

Experiment 3 Rubric – Formal; Out of 80 points total Pre-Lab (This is the written part in your notebook) – 20 points Objective – 1 point Balanced Equation – 2 points  One balanced equation –all dienes/products have the same molecular formula Structures of possible products with all dienes – 8 points Reagent Table – 2 points  Remember to include ALL reagents used in the lab.  Must include safety information Written procedure (in step format) – 2 points Observations – 2 points Calculations– 3 points  Approximate mass of diene in the 5 grams of oil  Mass of maleic anhydride needed  Theoretical yield of product Post-Lab (This part is typed) – 45 points Sections of the lab report in appropriate order – 1 points  See sample lab report on Compass Title page – 1 point  Contains title of experiment, author, date, lab section, TA names Introduction – 3 points  Must include objective, and at least 1 paragraph of background information on the lab, specifically regarding the mechanism/usefulnessof the Diels-Alder reaction.  Don’t just use the introduction from the lab manual –find other information and make sure to cite your sources. Table of reagents – 1 point  Remember to include ALL reagents used in the lab.  Must include safety hazards Procedure – 9 points  Paragraph format  Past tense  Passive voice  See sample on Compass for example Four potential products of the reaction – 2 points  Must be drawn in ChemDoodle  Don’t include all enantiomers Reaction Mechanism – 2 points  Must be drawn in ChemDoodle  Must use one of the actual products formed, not just a general Diels-Alder reaction Summary Table – 3 points  Experimental yield, percent yield, and melting point observed  Must be in table format

IR Data Spectra/Interpretation – 5 points  Attach copy of spectra to report  IR data presented in table (see sample on Compass) with appropriate information NMR Data Spectra/Interpretation – 6 points  Attach a (processed) copy of your NMR data. Process according to the instructions in the lab manual, do not use the “autoprocess”functions of MNova.  NMR data presented in table (see sample report on Compass) with appropriate information  Note that this NMR is particularly advanced for the level that you’re at right now and it’s entirely okay to be confused by it. Use the workflow presented in the manual, look for key peaks that stand out and help you distinguish between the possible products, and do your best. Things like multiplicity can be very difficult for this NMR and so we don’t expect perfect interpretation. Discussion – 10 Points  Discuss how you arrived at the identity of your diene. Use data you gathered from your melting point analysis, IR analysis, and NMR analysis to support your answer.  Discuss your overall success/purity of the product using information such as percent yield, melting point, NMR, IR. Note places you could improve based on your observations/mistakes in lab. Conclusion – 2 points  Summarize the point of the experiment, what was done, and what the results were. Should be a short (3-4 sentence) paragraph summarizing the entirety of the experiment. Post Lab Questions (This part is typed) – 15 Points Q1 – 5 Points Q2 – 5 Points Q3 – 5 Points

Your preview ends here

Eager to read complete document? Join bartleby learn and gain access to the full version