What should we observe in an #""^1H# #"NMR spectroscopic"# experiment?

Symmetry can sometimes be used to interpret an NMR spectrum, see this old spray, and also here.

The above treatment will tell you HOW many signals you should see in the spectrum; it will not tell you where they are. This is the province of experiment.

The intensity of peak, the area under the curve, is of course related to the number of protons that give rise to the peak.

In a 1H NMR spectroscopic experiment, we should observe the chemical shifts of hydrogen nuclei in a molecule, which are typically reported in parts per million (ppm) relative to a reference compound such as tetramethylsilane (TMS). Additionally, we should observe the splitting patterns caused by neighboring hydrogen atoms, known as coupling or spin-spin splitting, which provide information about the number of hydrogen atoms on adjacent carbon atoms. The integration of the peaks reveals the relative abundance of hydrogen nuclei contributing to each signal. Finally, we should observe any additional features such as multiplets, broadening, or other anomalies that may provide insights into the molecular structure or environment.