The POH Of A Solution Is 6.0. Which Statement Is Correct?Use $pOH = -\log \left[ \text{OH}^- \right] And P H + P O H = 14 PH + POH = 14 P H + PO H = 14 .A. The PH Of The Solution Is 20.0.B. The Concentration Of OH − \text{OH}^- OH − Ions Is $1.0 \times 10^{-8}
Introduction
In chemistry, the pOH and pH of a solution are two fundamental concepts that help us understand the acidity and basicity of a solution. The pOH is a measure of the concentration of hydroxide ions (OH-) in a solution, while the pH is a measure of the concentration of hydrogen ions (H+). In this article, we will explore the relationship between pOH and pH, and use this knowledge to determine the correct statement regarding a solution with a pOH of 6.0.
Understanding pOH and pH
The pOH of a solution is defined as the negative logarithm of the concentration of hydroxide ions (OH-). Mathematically, this can be expressed as:
pOH = -log[OH-]
The pH of a solution, on the other hand, is defined as the negative logarithm of the concentration of hydrogen ions (H+). Mathematically, this can be expressed as:
pH = -log[H+]
Relationship Between pOH and pH
The relationship between pOH and pH is given by the equation:
pH + pOH = 14
This equation indicates that the sum of the pOH and pH of a solution is always 14. This is a fundamental principle in chemistry, and it is used to determine the pH of a solution when the pOH is known.
Determining the pH of a Solution with a pOH of 6.0
Using the equation pH + pOH = 14, we can determine the pH of a solution with a pOH of 6.0. Substituting the value of pOH into the equation, we get:
pH + 6.0 = 14
Subtracting 6.0 from both sides of the equation, we get:
pH = 8.0
Therefore, the pH of a solution with a pOH of 6.0 is 8.0.
Determining the Concentration of OH- Ions
Using the equation pOH = -log[OH-], we can determine the concentration of OH- ions in a solution with a pOH of 6.0. Substituting the value of pOH into the equation, we get:
6.0 = -log[OH-]
Taking the negative logarithm of both sides of the equation, we get:
[OH-] = 10^(-6.0)
[OH-] = 1.0 x 10^(-6)
Therefore, the concentration of OH- ions in a solution with a pOH of 6.0 is 1.0 x 10^(-6).
Conclusion
In conclusion, the correct statement regarding a solution with a pOH of 6.0 is that the pH of the solution is 8.0, and the concentration of OH- ions is 1.0 x 10^(-6). This is determined using the equations pOH = -log[OH-] and pH + pOH = 14.
Frequently Asked Questions
Q: What is the relationship between pOH and pH?
A: The relationship between pOH and pH is given by the equation pH + pOH = 14.
Q: How do I determine the pH of a solution with a known pOH?
A: To determine the pH of a solution with a known pOH, use the equation pH + pOH = 14.
Q: How do I determine the concentration of OH- ions in a solution with a known pOH?
A: To determine the concentration of OH- ions in a solution with a known pOH, use the equation pOH = -log[OH-].
References
- Chemistry: An Atoms First Approach, by Steven S. Zumdahl
- General Chemistry: Principles and Modern Applications, by Linus Pauling
- Chemistry: The Central Science, by Theodore L. Brown
Further Reading
- Understanding pH and pOH
- Determining the pH of a Solution
- Determining the Concentration of OH- Ions
Related Topics
- Acidity and Basicity
- pH and pOH
- Hydrogen and Hydroxide Ions
Keywords
- pOH
- pH
- Hydroxide ions
- Hydrogen ions
- Acidity
- Basicity
- Chemistry
Introduction
In our previous article, we explored the relationship between pOH and pH, and used this knowledge to determine the correct statement regarding a solution with a pOH of 6.0. In this article, we will answer some of the most frequently asked questions regarding pOH and pH.
Q&A
Q: What is the difference between pH and pOH?
A: The pH is a measure of the concentration of hydrogen ions (H+) in a solution, while the pOH is a measure of the concentration of hydroxide ions (OH-) in a solution.
Q: How do I determine the pH of a solution with a known pOH?
A: To determine the pH of a solution with a known pOH, use the equation pH + pOH = 14.
Q: How do I determine the concentration of OH- ions in a solution with a known pOH?
A: To determine the concentration of OH- ions in a solution with a known pOH, use the equation pOH = -log[OH-].
Q: What is the relationship between pH and pOH?
A: The relationship between pH and pOH is given by the equation pH + pOH = 14.
Q: Can I determine the pH of a solution if I know the concentration of OH- ions?
A: Yes, you can determine the pH of a solution if you know the concentration of OH- ions. Use the equation pH + pOH = 14, and substitute the value of pOH into the equation.
Q: Can I determine the concentration of OH- ions in a solution if I know the pH?
A: Yes, you can determine the concentration of OH- ions in a solution if you know the pH. Use the equation pOH = 14 - pH, and substitute the value of pH into the equation.
Q: What is the pH of a solution with a pOH of 8.0?
A: To determine the pH of a solution with a pOH of 8.0, use the equation pH + pOH = 14. Substituting the value of pOH into the equation, we get:
pH + 8.0 = 14
Subtracting 8.0 from both sides of the equation, we get:
pH = 6.0
Therefore, the pH of a solution with a pOH of 8.0 is 6.0.
Q: What is the concentration of OH- ions in a solution with a pH of 9.0?
A: To determine the concentration of OH- ions in a solution with a pH of 9.0, use the equation pOH = 14 - pH. Substituting the value of pH into the equation, we get:
pOH = 14 - 9.0
pOH = 5.0
Using the equation pOH = -log[OH-], we get:
5.0 = -log[OH-]
Taking the negative logarithm of both sides of the equation, we get:
[OH-] = 10^(-5.0)
[OH-] = 1.0 x 10^(-5)
Therefore, the concentration of OH- ions in a solution with a pH of 9.0 is 1.0 x 10^(-5).
Conclusion
In conclusion, we have answered some of the most frequently asked questions regarding pOH and pH. We hope that this article has provided you with a better understanding of the relationship between pOH and pH, and how to use this knowledge to determine the pH and concentration of OH- ions in a solution.
Frequently Asked Questions
Q: What is the pH of a solution with a pOH of 10.0?
A: To determine the pH of a solution with a pOH of 10.0, use the equation pH + pOH = 14. Substituting the value of pOH into the equation, we get:
pH + 10.0 = 14
Subtracting 10.0 from both sides of the equation, we get:
pH = 4.0
Therefore, the pH of a solution with a pOH of 10.0 is 4.0.
Q: What is the concentration of OH- ions in a solution with a pH of 7.0?
A: To determine the concentration of OH- ions in a solution with a pH of 7.0, use the equation pOH = 14 - pH. Substituting the value of pH into the equation, we get:
pOH = 14 - 7.0
pOH = 7.0
Using the equation pOH = -log[OH-], we get:
7.0 = -log[OH-]
Taking the negative logarithm of both sides of the equation, we get:
[OH-] = 10^(-7.0)
[OH-] = 1.0 x 10^(-7)
Therefore, the concentration of OH- ions in a solution with a pH of 7.0 is 1.0 x 10^(-7).
References
- Chemistry: An Atoms First Approach, by Steven S. Zumdahl
- General Chemistry: Principles and Modern Applications, by Linus Pauling
- Chemistry: The Central Science, by Theodore L. Brown
Further Reading
- Understanding pH and pOH
- Determining the pH of a Solution
- Determining the Concentration of OH- Ions
Related Topics
- Acidity and Basicity
- pH and pOH
- Hydrogen and Hydroxide Ions
Keywords
- pOH
- pH
- Hydroxide ions
- Hydrogen ions
- Acidity
- Basicity
- Chemistry