Integration of H NMR Absorptions Proton Counting

Problem 13.15 Each of the following compounds has a single NMR peak. Approximately where would you expect each compound to absorb  

Problem 13,16 Identify the different kinds of protons in the following molecule, and tell where you would expect each to absorb  

How many peaks would you expect in the H NMR spectrum of 1,4-dimethyl-benzene (p-xylene) What ratio of peak areas would you expect on intimation ol the spectrum Refer to Table 13.3 for approximate chemical shifts, and sketch what the spectrum would look like. (Remember from Section 2.4 that aromatic rings have two resonance forms.) 

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