Propose the structure of C7H140 using the following 'HNMR spectral data. a. 1.58;9H, singlet b. 2.28;3H, singlet c. 2.98;2H, singlet 4. Propose the structure of C7H140 using the following 'HNMR spectral data. a. 1.5 8; 9H, singlet b. 2.2 8; 3H, singlet c. 2.9 8; 2H, singlet

Propose two molecular formulas for each of the following molecular ions: (a) 72; (b) 100; (c) 73.

and An acidic liquid has a broad band at 3300 cm a sharp band at 1710 cm in the infrared spectrum. One mole of this unknown reacts with one mole of NaOH. The ¹H NMR spectrum shows three peaks in the ratio 2 : 2 : 1. Microanalysis gave C, 33.2 %; H, 4.6%; C1, 32.7%. Deduce the structure of the unknown. Spell out the full name of the compound.

emistry: H.W. #8 CH X 2) - sheena. myTCC - Blackboar. U Labflow - Login Connect - Class: 20.. - BIOL - 2401 -3077.. Chem dii arucnyue s prvuuceu. JImany, a neLUIe is prouuceu HUn a 4 DILUUI. Terlidiy dIGUI IUIS (U / u TIUETeauny UAJULE vecause urere is rut anyuruyen aiuiI VUTueu ty ue Laruuu gu Part C Draw the major product of the following reaction: OH jo CH,CH2CHCH, Draw the molecule on the canvas by choosing buttons from the Tools (for bonds), Atoms, and Advanced Template toolbars. The single bond is active by default. > View Available Hint(s) Ci Marvin JS Br A" by ChemAxon A OOO C 00d 20201111 195427jpg 20201111 195427 jpg 20201111_194254.jpg Verified

Prioritize these groups as 1,2,3 &4 with 1 being highest priority.

C. Which FTIR spectra correspond to (a) PVAc and (b) PVA? Justify your answer.     D. Poly(vinyl butyral), or PVB, is a thermoplastic polymer used as an interlayer in laminated glass, paints, lacquers, varnishes, and adhesives. The structure of PVB is shown below. Show how you will prepare PVB from PVA.

Determine the structure. Note that for the 13C data, multiplicity is given.  So a CH3 group would be a quartet (n+1) and a CH2 group would be a triplet, etc

C1) Example 2: Calculation-(0.8gm ofA (MW=334.46)(C6H5)3P=CHC6H5, 120 mgs of compound Band 1 equivalent ofNaOH (50 %) were combined to give 0.10gm of a product. Identify the expected product and calculate the Theoretical and percent Yield. (C6H5)3P=CHCH₂ + A B NaOH C

A compound with the molecular formula C6H11BrO2 shows an intense band at 1739 cm-1 in the IR spectrum. The mass spectrum shows signals at m/z = 194 and 196 (about 1:1 intensity); 149 and 151 (about 1:1 intensity); 115; 121 and 123 (about 1:1 intensity); 166 and 168 (about 1:1 intensity); and 29. Suggest a reasonable structure for this compound that is consistent with this data.

Discuss peak splitting, and draw H(proton) NMR spectra for CH3CH2CH2F structure, label and explain splitting of each peak and the shielded and de-shielded peaks.