Define esterification with an example.

Esterification is a chemical reaction that involves the formation of an ester from a carboxylic acid and an alcohol. It is a condensation reaction, meaning it produces water as a byproduct. The reaction is typically catalyzed by an acid or base.

The general chemical equation for esterification is:

Carboxylic acid + Alcohol ⟶ Ester + Water

Here's an example of esterification using acetic acid (a common carboxylic acid) and ethanol (a common alcohol) to form ethyl acetate (a typical ester):

CH3COOH (Acetic acid) + C2H5OH (Ethanol) ⟶ CH3COOC2H5 (Ethyl acetate) + H2O (Water)

In this example, acetic acid (CH3COOH) reacts with ethanol (C2H5OH) in the presence of a catalyst (usually an acid or base) to produce ethyl acetate (CH3COOC2H5) and water (H2O). Ethyl acetate is a volatile compound often used as a solvent in various industrial applications and is responsible for the fruity smell in some fruits, like pineapples.