Introduction To Chemistry
Introduction To Chemistry
5th Edition
ISBN: 9781259911149
Author: BAUER, Richard C., Birk, James P., Marks, Pamela
Publisher: Mcgraw-hill Education,
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Chapter 13, Problem 10PP

(a)

Interpretation Introduction

Interpretation:

pH for 0.00085 M HCl is to be found.

(a)

Expert Solution
Check Mark

Explanation of Solution

pH of a solution gives the concentration of hydrogen ions in that solution. Range of pH values is from 0 to 14 . Solutions having pH values less than 7 are acidic, those having pH values greater than 7 are basic. Solutions with pH=7 are neutral.

As HCl is a strong acid, it will ionize completely to give H3O+ and Cl ions. Hence, the concentration of H3O+ ions is also 0.00085 M .

For H3O+=0.00085 M , pH is calculated as follows:

pH=logH3O+

Substitute for 0.00085 M H3O+ in the above equation.

pH=log0.00085=3.07

Therefore, pH is found to be 3.07 .

(b)

Interpretation Introduction

Interpretation:

pH for 0.10 M NaOH is to be found.

(b)

Expert Solution
Check Mark

Explanation of Solution

pH of a solution gives the concentration of hydrogen ions in that solution and pOH gives the concentration of OH ions in that solution. Range of pH values is from 0 to 14 . Solutions having pH values less than 7 are acidic, those having pH values greater than 7 are basic. Solutions with pH=7 are neutral.

As NaOH is a strong base, it will ionize completely to give Na+ and OH ions. Hence, the concentration of OH ions is also 0.10 M .

For OH=0.10 M , pOH is calculated as follows:

pH=logOH

Substitute 0.10 M for OH in the above equation.

pOH=log0.10=1

pH for 0.10 M NaOH is calculated as follows:

pH+pOH=14

Substitute 1 for pOH in the above equation.

pH+1=14pH=141pH=13

Therefore, pH is found to be 13 .

(c)

Interpretation Introduction

Interpretation:

pH for 1.0 M HNO3 is to be found.

(c)

Expert Solution
Check Mark

Explanation of Solution

pH of a solution gives the concentration of hydrogen ions in that solution. Range of pH values is from 0 to 14 . Solutions having pH values less than 7 are acidic, those having pH values greater than 7 are basic. Solutions with pH=7 are neutral.

As HNO3 is a strong acid, it will ionize completely to give H3O+ and NO3 ions. Hence, the concentration of H3O+ ions is also 1.0 M .

For H3O+=1.0 M , pH is calculated as follows:

pH=logH3O+

Substitute 1.0 M for H3O+ in the above equation.

pH=log1.0=0

Therefore, pH is found to be 0 .

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Convert the structure below to a skeletal drawing. H C 010 H. I C 010 C=O C H C. H

Chapter 13 Solutions

Introduction To Chemistry

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