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What is an example of a weak acid?

Answer:
Acetic acid:
CH3CO2H + H2O <<----> H3O+ + CH3CO2-

The equilibrium is far more on the left side (<<--), less than 1% is protolised as acid (righthand reaction -->) so it is a weak acid.
Ethanoic Acid is an example of a weak acid, most orgainic acids are weak acids.
First answer by JoppeDeQuint. Last edit by JoppeDeQuint. Contributor trust: 170 [recommend contributor recommended]. Question popularity: 1 [recommend question].