bundance Relative IR Peaks A AUAW B NMR DUR DA 1997 STRUCTURE TROBLEM с D (tu) E (two) MASS SPECTRUM -- C INTEGRAL-S B INTEL Ca Ho PE MASS SPECTRUM m/e STRUCTURE 91 43 28 Your Assignmeuty NAR Peak 7pm A M(134) vis tiesis is t 5 Splitting no. of PROPOSED STRUCTURE: Please propose a structure that fits SODAR, IR, NMR, and Mass Spectrum Also, Cirse each group of hydrogen label them A,B,C to show the NMR assignments.

12. Which absorption spectrum corresponds to a red solution? a. (a) b. (b) C. (c) d. (a) and (c) e. (b) and (c) 400 nm e 700 nm

uestión 6 of 24 cm. What is the concentration of the A A specific steroid has a Amax of 258 nm and a molar absorptivity ɛ of 11, 500 L mol- compound in a solution whose absorbance at 258 nm is A = 0.050 with a sample pathlength of 1.00 cm ? %3D M concentration:

8.Label the functional groups and identify the correct compound based on the IR spectrum. CI Br % Transmittance a) 100 50 0 4000 b) OH gorda d) 3000 CI CI CI CI CI c) mm 2000 1500 Wavenumber (cm-¹) Chemistry T 1000 500

Chapter 5: INTEGRATED SPECTROSCOPY PRO Compound 9 is a high-boiling liquid (boiling point 201'C), that reacts with alkoxide to yield spectra, along with C NMR data, are given below Elemental Analysis: C, 49.16; H, 4.13, contains manes an ether. The Mass, IR, and 'H NMR Mass Spectrum 91 65 172-170 170 180 190 200 100 I0 120 130 140 Is0 160 30 40 60 70 90 Infrared Spectrum Wave Number, cm 1 4000 3000 2500 1300 1200 1100 B00 700 2000 1500 1000 10 11 12 13 ' Η ΝMR Wavelength, microns 14 15 2. ppm, 5 "C Spectral Data: Structure: singlet, 130.1 ppm; doublet, 129.0 ppm, doublet, 127.8 ppm; doublet, 127.7 ppm; triplet, 29.3 ppm C2000 Brooks/Cole Publishing Company Absorbance

I I I A molecule produces an IR spectrum with key peaks at approximately 3300 and 2100 cm¯¹. The mass spectrum has a molecular ion with a m/z = 68, and major fragment with m/z of 39. Draw a structure that best fits this data. Drawing I I

Analyze and label this NMR spectrum of butyl propanoate

How do I find %T for the following? Thank you

I was labeling my IR Spec of resorcin[4]arene•H2O. Are my peaks labeled correctly? Did I forget any major peaks? Thank you!

4..Analyze the HNMR spectrum below: