Predict Spectrum I:
**Select one:** Benzyl Alcohol Bromoethane t-Butyl Acetate 1,3-Dichloropropane Ethyl Acetate Ethylmethylketone Methylbenzene 2-Nitrosopropane 1,1,2-Trichloroethane

Predict Spectrum II:
**Select one:** Aspirin 1-Bromopentane 2-Chlorobutane Ethyl Acetate Ethyliodide

Peak Assignments:
**Select one:** Aspirin 1-Bromopentane 2-Chlorobutane Ethyl Acetate Ethyliodide

quick review

The area under the NMR resonance is proportional to the number of hydrogens which that resonance represents. In this way, by measuring or integrating the different NMR resonances, information regarding the relative numbers of chemically distinct hydrogens can be found. Experimentally, the integrals will appear as a line over the NMR spectrum.

Integration only gives information on the relative number of different hydrogens, not the absolute number.

Click to see an animated explanation on finding out the ratio of hydrgoens for the example spectrum below. (Requires Flash 4 plugin)