% TRANSMITTANCE d) Assign five IR-absorption bands below the peaks in the following spectrum: *(d) A CH2-CH3 -CH2-CH2-C-H C Ñcot;Ñct;ཡརི་ཡo-t B cut.ཡ་ཡct; Ꭰ 10025 90 60 50 40 30 20 8 2 2 2 2 2 2 2 2 10 1688 cm MICRONS 8 9 10 11 12 13 14 15 16 19 0 4000 3600 3200 2800 2400 2000 1800 1600 1400 1200 1000 800 600 400 WAVENUMBERS (CM-1)

Fill out the IR spectra of the compound

identify and interpret the peaks and their characteristics (C=O, 4H, doublet) product name: dulcin (4-ethoxyphenylurea) (C9H12N2O2) images include CNMR, HNMR, and IR spectroscopy

[X] (ppm) 0.00 10.0 15.0 20.0 25.0 30.0 35.0 x-axis Resources UV-Vis absorbance data for molecule X collected at 425 nm using a 3.50 cm cuvet is given in the table. [X] (M) 0.00 1.00 × 10 4 1.50 × 10-4 2.00 × 10-4 2.50 × 10-4 3.00 x 10-4 3.50 x 10-4 O %T %T T A 100.0 1.000 0.000 49.4 0.494 0.306 34.9 0.349 0.457 25.3 0.253 0.597 17.3 0.173 0.761 15.4 0.154 0.813 13.9 0.139 0.857 Prepare a plot using the linear range of the data to determine the molar absorptivity. What should be plotted on each axis to determine the molar absorptivity of molecule X at this wavelength? x Give Up? y-axis Hint OT 8:1