   Chapter 14, Problem 22Q

Chapter
Section
Textbook Problem

# Why is H3O+ the strongest acid and OH– the strongest base that can exist in significant amounts in aqueous solutions?

Interpretation Introduction

Interpretation:

In a significant amount of aqueous solution, H3O+ is strongest acid and OH- is strongest base that exist have to be explained.

Concept introduction:

The substance which is completely ionized when dissolved in water called strongest acid and strongest base.  Weak acid and weak base are dissociated partially in aqueous solution.  The acid and base concentrations are expressed in terms of pH . pH is concentration of hydrogen ions [H+] .

pH is the numerical scale used to measurement f concentration of hydrogen ion and acidity and alkalinity of the solution. pH scale ranges from 0-14. At 25°C if the solution having pH value less than 7 means acidic while those solutions with pH greater than 7 means basic or alkaline.

Explanation

Explanation

No acid stronger than hydronium ion (H3O+) and no base stronger than hydroxide ion (H+) which that can exist in aqueous solution.  This phenomenon is known as ‘leveling effect’.

In aqueous solution, any species is strongest than conjugate acid of water (H3

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