Does Benz acid and Sonic acid is a part of citric acid?

No. It is a reasonably weak acid with a pH of around 5. It wouldn't do any harm unless it came in contact with a cut or your eyes... Added: Citric acid: (1,2,3-tricarboxy-propan-2-ol) 'tricarboxylic...

I suppose that it is more simple to determine this value experimentally, by titration of a citric acid solution with a potassium hydroxide solution.However, if the material is pure, the theoretical...

The acid part of an amino acid is the functional group "carboxylic acid" (COOH).

No, it is triprotic.

An acid is a substance with high levels of H+ ions. The higher the concentration of H+ ions, the greater the pH, thus more acidic. Citric acid, therefore, contains a surplus of unbonded H+ ions and...