Problem 118 IR Spectrum (liquid film) 1698 4000 3000 2000 1600 1200 800 v (cm") 100 Mass Spectrum UV Spectrum 80 M*. 136 A max 277 nm (log10€ 4.2) solvent : methanol 92 107 22 20 C3HBO2 160 m/e 40 80 120 200 240 280 13C NMR Spectrum (100.0 MHz, CDCI, solution) DEPT CH сH снt solvent proton decoupled 200 160 120 80 40 O 8 (ppm) expansion 'H NMR Spectrum (400 MHz, CDCI, solution) 7.65 7.45 6.85 6.65 ppm TMS 10 8 7 6 4 3 2 8 (ppm) % of base peak

Identify the peaks and structer.

Problem 7 2249 IR Spectrum (KBr disc) 4000 3000 2000 1600 1200 800 v (cm') 100 Mass Spectrum 80 53 60 No significant UV 40 M+' = 80 absorption above 220 nm 40 20 C4HẠN2 160 m/e 40 80 120 200 240 280 T 13C NMR Spectrum (100.0 MHz, CDCI, solution) DEPT CHat CH, сн+ proton decoupled solvent 200 160 120 80 40 8 (ppm) H NMR Spectrum (400 MHz, CDCI, solution) TMS 10 1 8 (ppm) 9 7 6. 4 % of base peak 5

What is the IR and HNMRAndCNMR and mass

Consider a molecule with the molecular formula C7H8O2   Draw a structure based on the data given.

Macmillan Learning λ (nm) EA (M-1cm-1) EB (M-1cm-1) EC (M1cm-1) 450 3200 10900 19300 5900 9400 10100 27500 12200 3500 480 Spectroscopic data for three organic dyes, A, B, and C, are shown in the table. A solution containing a mixture of the three dyes in a 1.000 cm cuvet had absorbances of 0.5906 at 450 nm, 0.4340 at 480 nm, and 0.6873 at 520 nm. Find the concentrations of the three dyes in the solutions. For each solution, the zero is set with a blank. 520 [A] = [B] = [C] = M M M

109 Problem 3 IR Spectrum (quid fim) 2084 1741 1243 4000 3000 2000 1600 1200 800 0.0 v (cm') 100 43 80 Mass Spectrum 0.5 60 UV spectrum 40 29 1.0아 solvent ethanol M= 88 130 20 15.4 mg/ 10 mis path length 1.00 cm CAHBO2 1.5 40 80 120 160 200 240 280 200 250 300 350 m/e 2 (nm) 13C NMR Spectrum (50.0 MHz. CDCI, solution) DEPT CH, CH, CHt proton decoupled solvent 200 160 120 80 40 0 8 (ppm) H NMR Spectrum (200 MHz, CDCI, solution) TMS 1 8 (ppm) 3 10 6. 8 7 92 % of base peak

116 Problem 10 IR Spectrum (KBr disc) 14=12+2 1693 4000 (02F14-8 2 CH2 3000 2000 1600 1200 B00 V (cm') 100 C=02 56 Mass Spectrum 80 M* 112 60 No significant UV absorption above 220 nm 40 20 CeHgO2 12+2-06/44 40 120 m/e 80 160 200 240 280 13C NMR Spectrum (100 O MHz. CDCI, solution) DEPT CH, CH,t CHt proton decoupled solvent 200 160 120 80 40 8 (ppm) H NMR Spectrum (400 MHz, CDCI, solution) TMS 1 8 (ppm 7 6. 4 3 2 10 9.

Q: Determine the structure of the following unknowns using the table to fill in your answers. B C B Signal 8 Integration Multiplicity Comments A C S J D C₂H₁0O₂ E 3 C10H120 PPM Signal & Integration Multiplicity Comments A 3 DOM L

Please elaborate the steps to finding the answer for this unknown spectroscopy?