Question

1.
What is the formula and the basicity of hydrated oxalic acid and anhydrous.
acid ?​

Answer 1

Answer:

Explanation:The formula of oxalic acid is (C2H2O4); its usual form is that of the crystalline hydrate, (COOH) 2H2O. Known as a constituent of wood sorrel as early as the 17th century, oxalic acid was first prepared synthetically in 1776. [ITS THE FORMULA AND EXPLANATION OF HYDRATED OXALIC ACID]

Acetic anhydride, or ethanoic anhydride, is the chemical compound with the formula (CH3CO)2O. Commonly abbreviated Ac2O, it is the simplest isolable anhydride of a carboxylic acid and is widely used as a reagent in organic synthesis. It is a colorless liquid that smells strongly of acetic acid, which is formed by its reaction with moisture in the air.[ITS THE FORMULA ]

The basicity of acid is the number of H+ ions that can be produced on ionization of 1 molecule of the acid. In case of oxalic acid (COOH)2, one molecule of the acid furnishes 2 H+ to the solution therefore its basicity is 2.[ITS THE EXPLANATION AND BASICITY IN HYDRATED OXALIC ACID]

Answer 2

Anhydrous Citric Acid = $C_6H_8O_7(anhydrous)$

Explanation:

The formula of oxalic acid - $(C_2H_2O_4)$

• The usual form of oxalic acid is hydrated oxalic acid that is crystalline hydrate, $(COOH)_2.2H_2O$
• The basicity of acid is the number of $H^+$ions that can be furnished on ionization of one molecule of an acid
• In oxalic acid $(COOH)_2$, one molecule of the acid produces $2H^+$ ion in the solution

∴ Its basicity is 2

Anhydrous Citric Acid = $C_6H_8O_7(anhydrous)$

or, $CH_2COOH-C(OH)COOH-CH_2COOH$

• Citric acid is a weak acid when added to a base it oxidizes partially
• It furnishes about 3 protons$(H^+)$ in the solution

∴ Its basicity is 3