   Chapter 14, Problem 57E

Chapter
Section
Textbook Problem

# Calculate the pH of each of the following solutions of a strong acid in water.a. 0.10 M HClb. 5.0 M HClc. 1.0 × 10−11 M HCl

(a)

Interpretation Introduction

Interpretation: The pH value for the given solutions of a strong acid in water is to be calculated.

Concept introduction: The pH of a solution is define as a figure that expresses the acidity of the alkalinity of a given solution. A logarithmic scale is used on which, the value 7 corresponds to a neutral species, a value less than 7 corresponds to an acid and a value greater than 7 corresponds to a base.

The pH of a solution is calculated by the formula, pH=log[H+]

To determine: The pH value for the given solution of 0.10MHCl .

Explanation

Explanation

The reaction that takes place is,

HCl+H2OH3O++Cl

A strong acid completely dissociates in water.

HCl is a strong acid. Hence, it will dissociate complete.

Therefore, [H+] is 0.10M

(b)

Interpretation Introduction

Interpretation: The pH value for the given solutions of a strong acid in water is to be calculated.

Concept introduction: The pH of a solution is define as a figure that expresses the acidity of the alkalinity of a given solution. A logarithmic scale is used on which, the value 7 corresponds to a neutral species, a value less than 7 corresponds to an acid and a value greater than 7 corresponds to a base.

The pH of a solution is calculated by the formula, pH=log[H+]

To determine: The pH value for the given solution of 5.0MHCl .

(c)

Interpretation Introduction

Interpretation: The pH value for the given solutions of a strong acid in water is to be calculated.

Concept introduction: The pH of a solution is define as a figure that expresses the acidity of the alkalinity of a given solution. A logarithmic scale is used on which, the value 7 corresponds to a neutral species, a value less than 7 corresponds to an acid and a value greater than 7 corresponds to a base.

The pH of a solution is calculated by the formula, pH=log[H+]

To determine: The pH value for the given solution of 1.0×1011MHCl .

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