for each of the following compounds, draw the form in which it will predominate at ph=3, ph=6, ph=10, and ph=14.

Question

for each of the following compounds, draw the form in which it will predominate at ph=3, ph=6, ph=10, and ph=14.
a)CH3COOH b)CH3CH2NH3 c) CF3CH2OH

please explain how to get answers. my book does not give clear examples.