Question

Write a balanced equation for the double-replacement neutralization reaction described, using the smallest possible integer coefficients. A reaction occurs when aqueous solutions of phosphoric acid and potassium hydroxide are combined. Assume excess base.

Answer 1

Answer: The chemical reaction is given below.

Explanation:

Double displacement reactions are defined as the reactions in which exchange of ions takes place. The general equation for this reaction follows:

$AB+CD\rightarrow CB+AD$

The chemical equation for the reaction of phosphoric acid and potassium hydroxide follows:

$H_3PO_4+3KOH\rightarrow K_3PO_4+3H_2O$

By stoichiometry of the reaction:

1 mole of phosphoric acid reacts with 3 moles of potassium hydroxide to produce 1 mole of potassium phosphate and 3 moles of water.

This is also known as neutralization reaction.