SCAN0006 - Functional Groups Questions CHEM 3361 L rf...

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Unformatted text preview: Functional Groups Questions CHEM 3361 L rf\ Please submit answers to the following questions at Turnitln.com as a one-page, Word document (0.75 inch margins, 12 pt. Ariai, single-spaced) that does not include the ori inai uestions before your lab section on the relevant due date. Submit a hard copy of your answers for question 2 and your infrared spectrum to your instructor at your scheduled lab day and time. 1) we a simple (one- or two-sentence) definition of the term functional group. (1 Points) Bot (xx-i \CBle‘i gave, 0% reads/Em that 2) F r each of the following molecular classes, draw a simple m ' ’functionai group and list an infrared absorption that could be @ ' ' that functional group: W (3 Points) alcohol as mum @314 b c. carboxylic acid d. ketone e f alkyl halide aldehyde ‘ strong absorbance at 1700 cm-1. The Toiiens’ test did not show a positive result. A M compound gave an orange precipitate when reacted with 2,4—DNP and showed a What functional group is consistent with these results and why? (2 Points) Mist your unknown code and the functional group (or groups) that you concluded to ' be present in your unknown. (2 Points) 5) What chemical tests, positive or negative, were crucial in coming to your conclusion and why? (Keep your answer as simple as possible.) (5 Points) _ 6 at R absorptions (or lack thereof) were crucial in coming to your conclusion and x /, why? (5 Points) ‘u‘ 7) ite a procedure for one of the functional group tests that another student could . use to perform the test as you performed it in lab. (2 Points) ...
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