Please help with #3 part and #4 2000 15 -10o 3. (4 pts) In the mass spectrum of

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Please help with #3 part and #4 2000 15 -10o 3. (4 pts) In the mass spectrum of Pilocarpine the M" value? If so, why? S pecause aosunu 15-wen is at 208 amu. Did you expect thet the M" to be an even The base ion is at 95 amu. Draw this fragment and CONCISELY explain why you might expect that it would be the species that would give rise to the base peak 4. (5 pts) NSAIDS (non-steroidal anti-infiammatory drugs) not only have interesting physical properties, they also have H-NMR spectra that you can now interpret or predict fairly readily. Consi match the structure to the statement describing a molecule's spectral properties. You may use a than once or not at alt more than one compound may have the properties described (give all answers) der the structures given below and 3 Gives an 'H-NMR spectrum consisting only of four singlets that range from 3.28 to 86. Gives an 'H-NMR spectrum that has two doublets integrating for 2 H's each at 6 8 and 7 48 Gives an 'H-NMR spectrum that has a symmetrical, complex multiplet at 1,88 lkooking like a nonet Gives an 'H-NMR spectrum that has two singlets at 8.58 and 13.48 (shifts are concentration and solvent 2X dependent - the H at 13.48 undergoes exchange with D,O) Gives an 'H-NMR spectrum that has a singlet integrating for 3H at 2 18, t should have a broad singlet at ' y -128, however, most samples do not show this absorption unless they have been dried extensively Aspirin Caffeine Ibuprofen Salicylamide Napreven

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4.

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(6)

(1)(4)

(3) There is three methyl group those give singlet spectra.as nonet.

(2)

(6)

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