Question

ethanol and ethanoic acid (only properties and uses of soap and detergent)​

Answer 1

What is glacial acetic acid?

Ethanoic acid is also referred to as glacial acetic acid because its melting point is 16oC.

Hence it often freezes in the winter season when the climate is cold.

Reactions of ethanoic acids:

   Esterification reaction:

   When carboxylic acid and alcohol react, the product formed is known as an ester. Below is an example of the formation of an ester from the reaction of ethanoic acid with absolute ethanol in the presence of an acid as a catalyst.

   CH3COOH     +      CH3CH2OH      →     CH3COOCH2CH3

   (Ethanoic acid) (Ethanol) (Esters)

   Esters have a sweet fruity smell. They are mainly used for making perfumes and synthetic flavoring agents. The reaction of esters with alkalis gives carboxylic acid salt and alcohol. This reaction is used in the making of soaps and the process is called as saponification reaction.

   CH3COOC2H5      + NaOH      →         C2H5OH +  CH3COONa

   Reaction with a base:

   Ethanoic acid reacts with a base to give the salt and water just like other mineral acids.

   Reaction with carbonates and hydrogen carbonates:

   Carbon dioxide, salt, and water are produced when ethanoic acid reacts with carbonates and hydrogen carbonates. Sodium acetate is usually produced as a salt when ethanoic acid reacts with sodium bicarbonate as shown in the reaction below:

CH3COOH  +  NaHCO3     →      CH3COONa + H2O + CO2

Explanation: