Question

IR of Synthesized Acetaminophen - Use the IR spectrum of your synthesized acetaminophen to answer the following questions: 3. Attach an annotated copy of your IR spectrum, with the absorptions corresponding to the stretches from the N-H, O-H, and C-O bonds labeled. (See Collab for an example of an annotated spectrum.) 5 points 4. How, if at all, does your experimental spectrum differ from the spectrum of pure acetaminophen from Collab? List any extra significant peaks and their wavenumber and intensity (weak, medium, or strong). 2 points 5. What can you say about the purity or identity of your sample (or of any impurities) based off of your IR spectrum? 2 points

Answer 1

SLEZ 2809 2879 2575 N- shes NH-bending SPC- st 21 918 1508 1236 1211 11181091 1255 96906 QLOL aromatic C=C 18 749 se 3000 1500 2500 2000 Wavenumbers (cm-1)

Transmittance 70 4000 105 95 even from water OH of acetic acid 3500 332003 3158.47 3000 2975.02 present in pure form broadening of spectra from 1800 to 3400 which is not from work up It may be acetic acid and water Impurity is presnt 2361.87 2500 Wavenumbers (cm-1) 2000 Carbonyl from-COOH 1710 1649 00 156132 161123 1513.53 1433.00 1326 a 372.22 1259260 22 1170.93 1107.82 1000 967 65 66 SC8 99 908 734 84 712 25 670 90 648.07 623.75 562.11 517.03