Topics
>>>
Practice
>>>

Integration
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)

Review Questions
For
ethyl acetate,

What ratio
would you expect to see for the integrals for the hydrogens
labeled A:B:C?

For ethyl
ether,

What ratio
would you expect to see for the integrals for the hydrogens
labeled A:B?

For tbutyl
acetate,

What ratio
would you expect to see for the integrals for the hydrogens
labeled A:B:C?

