Answer to Question #253255 in General Chemistry for Tahir

Question

Prepare a table showing the pH and the concentration of all phosphate species for HCl additions of 0, 5, 10, 15, 20, 25 and 30 meq/L to a solution of 10⁻² M Na₃PO₄.

Answer 1

Acidic organic phosphates exhibit more acidic properties than phosphoric acid.

 Hydrolysis of acid phosphates is accelerated at pH < 7, hydrolysis of full phosphates - at pH > 7