   # Calculate the ratio [NH 3 ]/[NH 4 + ] in ammonia/ammonium chloride buffered solutions with the following pH values: a. pH = 9.00 b. pH = 8.80 c. pH = 10.00 d. pH = 9.60 ### Chemistry: An Atoms First Approach

2nd Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781305079243

#### Solutions

Chapter
Section ### Chemistry: An Atoms First Approach

2nd Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781305079243
Chapter 14, Problem 44E
Textbook Problem
91 views

## Calculate the ratio [NH3]/[NH4+] in ammonia/ammonium chloride buffered solutions with the following pH values:a. pH = 9.00b. pH = 8.80c. pH = 10.00d. pH = 9.60

(a)

Interpretation Introduction

Interpretation:

Different pH values of a solution containing NH3 and NH4+ are given. The ratio, [NH3]/[NH4+] is to be calculated.

Concept introduction:

The pOH value is the measure of OH ions. The relation between pOH and pKb is given by Henderson-Hassel Bach equation. According to this equation,

pOH=pKb+log[Conjugateacid][Weakbase]

### Explanation of Solution

Explanation

To determine the pOH value of the solution

The relation between pH and pOH is,

pH+pOH=14

Where,

• pH is a measure of concentration of H+ .
• pOH is a measure of concentration of OH .

Substitute the value of pOH in above equation.

pH+pOH=149.00+pOH=14pOH=5.00_

To determine the ratio [NH3]/[NH4+]

The value of Kb for NH3 is 1.8×105 .

The pOH value of solution is 5.00 .

The pOH is calculated using the Henderson-Hassel Bach equation,

pOH=pKb+log[Conjugateacid][Weakbase]

Where,

• pOH is the measure of OH ions.
• pKb is the measure of basic strength.

The formula of pKb is,

pKb=logKb

Where,

• Kb is base equilibrium constant.

Substitute the value of pKb in the Henderson-Hassel Bach equation.

pOH=logKb+log[Conjugateacid][Weakbase]

Substitute all the given values in the above equation

(b)

Interpretation Introduction

Interpretation:

Different pH values of a solution containing NH3 and NH4+ are given. The ratio, [NH3]/[NH4+] is to be calculated.

Concept introduction:

The pOH value is the measure of OH ions. The relation between pOH and pKb is given by Henderson-Hassel Bach equation. According to this equation,

pOH=pKb+log[Conjugateacid][Weakbase]

(c)

Interpretation Introduction

Interpretation:

Different pH values of a solution containing NH3 and NH4+ are given. The ratio, [NH3]/[NH4+] is to be calculated.

Concept introduction:

The pOH value is the measure of OH ions. The relation between pOH and pKb is given by Henderson-Hassel Bach equation. According to this equation,

pOH=pKb+log[Conjugateacid][Weakbase]

(d)

Interpretation Introduction

Interpretation:

Different pH values of a solution containing NH3 and NH4+ are given. The ratio, [NH3]/[NH4+] is to be calculated.

Concept introduction:

The pOH value is the measure of OH ions. The relation between pOH and pKb is given by Henderson-Hassel Bach equation. According to this equation,

pOH=pKb+log[Conjugateacid][Weakbase]

### Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

#### The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Find more solutions based on key concepts
Characterize gases, liquids, and solids in terms of compressibility and fluidity.

General Chemistry - Standalone book (MindTap Course List)

To be labeled "low fat. a food must contain 3 grams of fat or less per serving. T F

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

What is blood plasma, and what is its function?

Human Biology (MindTap Course List)

Why is degenerate matter so difficult to compress?

Horizons: Exploring the Universe (MindTap Course List)

How many autosomes are present in a body cell of a human being? In a gamete?

Human Heredity: Principles and Issues (MindTap Course List)

A 60.0-kg woman stands at the western rim of a horizontal turntable having a moment of inertia of 500 kg m2 an...

Physics for Scientists and Engineers, Technology Update (No access codes included)

What are the features of the continental margins?

Oceanography: An Invitation To Marine Science, Loose-leaf Versin 