Answer the following questions about a quartet resonance in a 400 mhz 1h nmr spectrum that has peaks at 5.015, 4.998, 4.981, and 4.964 ppm a. what is the chemical shift (in ppm) for this resonance? (2) b. how many other equivalent hydrogen nuclei are coupling to the 'h nuclei associated with this resonance? (1) c. what is the value (in hz) of the coupling constant associated with this resonance? (2) d. draw a sketch of the resonance in the box on the right, illustrating the relative intensities of the individual peaks in the resonance. (2) e. draw the structure of an organic compound that could have this resonance. indicate which set of equivalent hydrogen(s) are responsible for the resonance. (4)