Question

Write a balanced equation (including phases) for the chemical reaction between dihydrogen phosphate ion (H2PO4‒) and water. Label the acid, the base, the conjugate acid, and the conjugate base.

Answer 1

Answer:The Acid is dihydrogen phosphate (H2PO4-), H2O is the base, H3O+ is the conjugate acid, HPO42- is the conjugate base.

Step-by-step explanation:

when dihydrogen phosphate (H2PO4-) ion reacts with water (H2O), it produces hydrogen phosphate ion (HPO42-) and hydroxonium ion (H3O+) following the reaction;

H2PO4- + H2O HPO42- + H3O+

According to Bronstead-lowry, an acid is a proton donor while a base is a proton receptor. The conjugate acid is the product after the base as accepted the proton while a conjugate base is the product after the acid has donated the proton.

The Acid is dihydrogen phosphate (H2PO4-) because it donates a proton to water which makes H2O the base.

H3O+ is the conjugate acid which is the product after the base accepted the proton while HPO42- is the conjugate base.