For example, in
ethyl acetate (
in the image ), there are 3 peaks [as there are 3 sets of
stereochemically different hydrogens]; and the red
hydrogens have 4 peaks because it is attached to a
carbon that has 3
hydrogens [then, adding 1], and
green hydrogens with 1 peak because its attached
carbon has no
hydrogens [then, adding 1], and
blue hydrogens with 3 peaks because its attached has 2
hydrogens [then, adding 1].