Which acid is strong for carboxylic acid and carbonic acid?
Carbonic acid actually measured PK1 = 6.36, which is weaker than the acidity of the monovalent aliphatic carboxylic acid, but this determination is based on the presence of water-soluble carbon dioxide in the form of H2CO3, but this is not true. In fact most of the CO2 Is in the form of a loose conjugate with water, so it should be corrected by the activity of H2CO3, thus obtaining PK1 = 3.7 for carbonic acid, which is stronger than the acidity of the monovalent aliphatic carboxylic acid.