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Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692

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BuyFindarrow_forward

Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692
Chapter 13, Problem 39E
Textbook Problem
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What is the [ H 3 O + ] in a solution with a pH of 4?

Interpretation Introduction

Interpretation:

The concentration of hydronium ions in the given solution is to be calculated.

Concept Introduction:

The pH of an aqueous solution is the measurement of hydrogen ion activity. Here, pH stands for potential of hydrogen. It is represented as

pH=log[H+].

Based on the hydrogen and hydroxide ion concentrations, solutions maybe neutral, acidic, or basic in nature.

If the concentrations of hydrogen ions and hydroxide ions are equal, then the solution will be neutral; if the concentration of hydrogen ions is greater than hydroxide ions, then the solution will be acidic in nature; if the concentration of hydroxide ions is greater than hydrogen ions, then the solution will be basic in nature.

Explanation of Solution

Given information: pH=4

For any given aqueous solution, pH is a measure of hydrogen ion concentration, basically a measure of acidity or alkalinity of a solution.

The pH is calculated by the following expression:

pH=log[H+]or pH=log[H3O+]

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Chapter 13 Solutions

Chemistry In Focus
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Ch. 13 - Why are bases not commonly found in foods?Ch. 13 - List four common laboratory bases and their uses.Ch. 13 - What are the Arrhenius definitions of acids and...Ch. 13 - What are the Brnsted-Lowry definitions of acids...Ch. 13 - What is the difference between a strong acid and a...Ch. 13 - The pH scale is a logarithmic scale. What is meant...Ch. 13 - What pH range is considered acidic? Basic?...Ch. 13 - What acid is responsible for the sour taste of...Ch. 13 - What is pickling? What acid is responsible for the...Ch. 13 - Where can you find acetic acid?Ch. 13 - What is aspirin? How does it work?Ch. 13 - List several common acids and where they might be...Ch. 13 - What acids are present in wines? What kind of...Ch. 13 - What is an alkaloid?Ch. 13 - What causes acid indigestion? List some common...Ch. 13 - How does an antacid work?Ch. 13 - Explain how a leavening agent works.Ch. 13 - Which pollutants are responsible for acid rain?...Ch. 13 - Why is rain acidic even in the absence of...Ch. 13 - How acidic is rain in the United States? Can this...Ch. 13 - Why can some lakes and soils tolerate acid rain...Ch. 13 - What are the effects of acid rain on the...Ch. 13 - What is being done to decrease the acidity of U.S....Ch. 13 - Write a chemical equation to show the...Ch. 13 - Write a chemical equation to show the...Ch. 13 - Identify the Brnsted-Lowry acid and base in each...Ch. 13 - Identify the Brnsted-Lowry acid and base in each...Ch. 13 - Write a chemical equation using Lewis structures...Ch. 13 - Write a chemical equation using Lewis structures...Ch. 13 - A chemist makes two solutions. One is a 0.01-MHCl...Ch. 13 - A chemist makes a 0.001-MNaOH solution and a...Ch. 13 - Give the pH that corresponds to each solution and...Ch. 13 - Give the pH that corresponds to each solution and...Ch. 13 - What is the [H3O+] in a solution with a pH of 4?Ch. 13 - What is the [H3O+] in a solution with a pH of 11?Ch. 13 - Write chemical reactions to show how each antacid...Ch. 13 - Write chemical reactions to show how each antacid...Ch. 13 - Suppose that the stomach contains...Ch. 13 - Suppose that 250.0 mL of a basic solution is 0.100...Ch. 13 - Write a chemical reaction to show how SO2 forms...Ch. 13 - Write a chemical reaction to show how NO2 forms...Ch. 13 - Write a short paragraph explaining why a person...Ch. 13 - Examine the household chemicals shelf at your...Ch. 13 - Determine from the following molecular view of a...Ch. 13 - Determine from the following molecular view of a...

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