Question

Write an equation to show how h2po4− can act as a base with h2o acting as an acid

Answer 1

Explanation:

H

2

PO

4

−

(aq)+H

2

O(aq)⇌H

3

PO

4

(aq)+OH

−

(aq)

Explanation :

According to the Bronsted Lowry concept, Bronsted Lowry-acid is a substance that donates one or more hydrogen ion in a reaction and Bronsted Lowry-base is a substance that accepts one or more hydrogen ion in a reaction.

Or we can say that, conjugate acid is proton donor and conjugate base is proton acceptor.

The given equilibrium reaction will be,

H_2PO_4^-(aq)+H_2O(aq)\rightleftharpoons H_3PO_4(aq)+OH^-(aq)H

2

PO

4

−

(aq)+H

2

O(aq)⇌H

3

PO

4

(aq)+OH

−

(aq)