the first pic is the quesiton, basiclly trying to figure out what the formula ans structure of yhe unonown molecules. you guven the NMR, Mass Spectra, and IR. im having a hard time firgyring it out, i feel like it could be an aromatic ring based on THE ir but i could figure it out.

Each Combined Spectra Problem contains some combination of the following information. IR spectrum, Nandos) spectrum and mass spectrum with molecular ion peak(s). On each spectrum, neatly jor absorption peaks with the structural fragment that causes the absorption on the answer sheet that follows each problem, fill in the requested information with all the structural information that can bom the specta. Then, using this information, propose the molecular formula, structure and Vanity.compound For each problem, show the steps you followed in deducing the unique molecular is your answer. For each set of spectra, you should be able to deduce a unique molecular structure. Once you have deduced a structure. Problem 10 100 MASS SPECTRUM ratio 0 MY10 M21 INFRARED SPECTRUM 70 80 0.8 60 0.6 Rel Intensity 40 0.4 20- 0.2 15 0.0- 0.0 20 40 60 100 1000 3000 2000 Wavenumber(cm) miz 13C NMR 13C-NMR 140 130 120 110 50 100 90 80 70 80 Chemical app 1H-NMR 20 15 10 Chemicals (opm) BO 2012 H DOC Problem 20 2000D MASS SPECTRUM INFRARED SPECTRUM 100 BO 0.8 60 0.6 Rel. Intensity Relative Transmittance 109 149 (M2) 40 58 0.4 a a 27 107 147 (M) 20 0.2 1000 0.0 0.0 120 160 3000 2000 Wavenumber icm1 40 80 miz 13C-NUR 4/7 1711 + wavenumber (CM m/z 13C-NMR 10 30 140 150 130 100 110 90 80 70 50 Chemical Ship 1H-NMR 1H-NMR M wolle 200 2.00 30 Chemicals