abundance 0 10.0 20.0 30.0 40.0 50.0 60.0 70.0 7.0 6.9 6 X: parts per Million: 1H 80.0 90.0 100.0 110.0 120.0 130.0 140.0 150.0 160.0 170.0 180.0 190.0 0 69.51m 0.2 0.1 0.45 0.53 0.54 0.69 1.00 Br

Which of the following compounds of molecular formula C6H1002, shows two singlets in its' H-NMR with areas of 2: 3, where the signal that integrates by 2 has a greater chemical shift?

Determine the following for each MS spectrum. 1) Determine the molecular ion peak. 2) Determine if Cl, Br, or S is present in each compound. 3) Use the nitrogen rule to determine if there could be an even or odd number of nitrogen atoms.

Name 4 chemical chifts, their multiplicity and their assignments using the following NMR shift.

Predict the number  of peaks and their multiplicity  in the off-resonance decoupled CMR spectra of the following compounds : (a) p-Dichlorobenzene (c) 1,4-Dioxane (b) p-Xylene (d) Methyl cyclopropane

Please help identify all the peaks of the NMR spectrum and the assignments of the compound, 1-(2-naphthyl)ethanol

Analyze the 13 CNMR spectrum of mehtyl acetate.

will be the pattern of the molecular ion peak(s) in the mass spectrum of 3-chloro-methyl-benzene (m-chloro-toluene). M+ at 126; largest peak at 76 M+ at 128; M+2 at 130, ratio 3:1 M+ at 128; M+2 at 130; ration 1:1 M+ at 128 M+ at 126; M+2 at 128, ratio 3:1 QUESTION 14 In a recrystallization, the solute is dissolved in solvent. cold room temperature hot QUESTION 15 Consider the aromatic compound 4-isopropyl-benzonițrile. (Benzonitrile is a benzene ring with the nitrile group on position 1.) How many for non-equivalent types of protons will be in its proton NMR spectrum? 4. 6

Fill in the table provided based on the expected HNMR spectrum of 2-phenyl-2-propanol.

By looking at the H1 NMR spectra, draw the structure for the solid organic unknown compound and explain the process you used to determine the identity of your compound. Show all H atoms and label each equivalent set of atoms as A, B, C etc in the structure.  Then, calculate the expected chemical shift for each of the equivalent set of H atoms in the structure. Clearly label your calculations  Note: (Clearly list the tables used, base shift values and what correction factors were used.)