   Chapter 14, Problem 7ALQ

Chapter
Section
Textbook Problem

# You are asked to calculate the H+ concentration in a solution of NaOH(aq). Because sodium hydroxide is a base, can we say there is no H+. since having H+ would imply that the solution is acidic?

Interpretation Introduction

Interpretation: The H+ concentration in a solution of NaOH is to be calculated. The base NaOH contains H+ (or not) is to be explained.

Concept introduction: The basic solution is a solution that contains more hydroxide ions than hydronium ions.

Explanation

Explanation

To determine: The H+ concentration in a solution of NaOH and if it is correct to say that there is no H+ in sodium hydroxide, since having H+ would imply that the solution is acidic.

The H+ concentration in a solution of NaOH is 1.0×1014_ .

The substance that generates hydroxide ions in water is known as Arrhenius base. Higher the amount of OH in solution, the solution will be more basic. The reaction of dissociation of water is,

H2O(l)H+(aq)+OH(aq)

The equilibrium constant for the above reaction is,

Kw=[H+][OH]=1.0×1014_

Where,

• Kw is equilibrium constant.
• [H+] is concentration of H+

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