(a) Complete the chemical equation for the ionization of Phosphoric ac

1.	(a) Complete the chemical equation for the ionization of Phosphoric acid.H3PO4 → H+ + H2PO4+H3PO4+ → H+ + ……. ..…. → H+ + PO43-(b) Based on the ionization equation given above Phosphoric acid is a tribasic acid? Justify it.
Answer» (a) H₃PO₄ → H⁺ + H₂PO₄^2- (Dihydrogen Phosphate ion) H₂PO₄^- → H⁺ + HPO₄^2- (Hydrogen Phosphate ion) HPO₄^2- → H⁺ + PO₄^3- (Phosphate ion) (b) In Phosphoric acid in aqueous solution number of H⁺ ion release is 3. Hence it is a tribasic acid.

(a) Complete the chemical equation for the ionization of Phosphoric acid.H3PO4 → H+ + H2PO4+H3PO4+ → H+ + ……. ..…. → H+ + PO43-(b) Based on the ionization equation given above Phosphoric acid is a tribasic acid? Justify it.

Answer»

(a) H₃PO₄ → H⁺ + H₂PO₄^2- (Dihydrogen Phosphate ion)

H₂PO₄^- → H⁺ + HPO₄^2- (Hydrogen Phosphate ion)

HPO₄^2- → H⁺ + PO₄^3- (Phosphate ion)

(b) In Phosphoric acid in aqueous solution number of H⁺ ion release is 3. Hence it is a tribasic acid.