How would you use $1^H$ NMR spectroscopy to distinguish between ${\mathrm{CH}}_3\mathrm{CH}{2}_{\mathrm{OH}}$ (ethanol) and ${\mathrm{CH}}_{3}O{\mathrm{CH}}_3$ (dimethyl ether)?

Answer the following questions:

c. What is the relationship between coupling constant in hertz and operating frequency?

d. How does the operating frequency in NMR spectroscopy compare with the operating frequency in IR and UV/Vis spectroscopy?

(a) Calculate the resonance frequency of an aldehydic proton ( δ 9.3 ppm) if it is detected on a 60-MHz NMR spectrometer.

(b) What if it were detected on a 300-MHz instrument?

What strength magnetic field is required when a 500-MHz instrument is used for ¹H NMR?

Calculate the amount of energy (in calories) required to flip an ¹H nucleus in an NMR spectrometer that operates at 300 MHz.

Which isomer of $C_4{H}_9{\mathrm{Br}}_1$ would show only one peak in its $1_H$ NMR spectrum?

How would you use $1^H$ NMR spectroscopy to distinguish between ${\mathrm{CH}}_{3}O{\mathrm{CH}}_3$ (dimethyl ether) and ${\mathrm{CH}}_{3}OH$ (methanol)?

Which of the following structures corresponds to a ${13}^C$ NMR spectrum showing a single peak at approximately $77$ ppm?

A ${13}^C$ NMR spectrum shows a single peak at approximately $77$ ppm. Which compound is most likely responsible for this spectrum?