Question
help plase with this organic chemistry 2 question? Ch:15-16-17
5. Identify the following statements as applying to Ms mass spectrometry. spectroscopy). or NMR (nuclear magnetie resonance spectroscopy- pts) IR (infrared Functional groups such as o H, C o, etc. are identified by characteristic vibrational frequencies their Samples are ionized in the instrument. The resultant ions and their fragments are separated analyzed. optical properties absorption) of glass prevent its use as a sample container. Sodium chloride is acceptable Direct observation of H and Ec is possible, but not "o or c 6. To separate a mixture of eaffeine, aspirin, and phenacetin, the mixture was dissolved in CH,CI2, then extracted with aqueous HCI. Caffeine is found in the layer. Phenacetin is found in the Aspirin is found in the layer. 7. The CH?CL layer (from above) was then extracted with aqueous NaHco to deprotonate is evolved. The aspirin is found in the The gas, aqueous layer. It is isolated by adding vormula) and collecting the solid by Anhydrous Nazso is added to dry the CHzciz layer. The phenacetin is finally isolated by distilling off the The separation of aspirin phenacetin caffeine is done by taking advantage of differences in behavior. The substances dissolve in aqueous solution because they become
Explanation / Answer
10A
11C
12D, 2-METHYL-2-PROPANOL.
