What is the pH of an 0.25 M solution of formic acid? Type your answer...

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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**Question:** What is the pH of a 0.25 M solution of formic acid?

**Answer Box:** Type your answer...
Transcribed Image Text:**Question:** What is the pH of a 0.25 M solution of formic acid? **Answer Box:** Type your answer...
**Question:** What is the pH of a 0.043 M solution of potassium hydroxide?

**Answer Box:**  
_Type your answer..._

**Description:**  
This image is a question prompt from an educational setting, likely focusing on chemistry. The question asks for the calculation of the pH of a potassium hydroxide (KOH) solution with a concentration of 0.043 M (molarity).

**Explanation:**  
To solve this, you need to understand that potassium hydroxide is a strong base, which means it completely dissociates in water. The concentration of OH⁻ ions will be the same as the concentration of the KOH solution.

1. Calculate the pOH of the solution:
   \[ \text{pOH} = -\log[\text{OH}^-] \]

2. Calculate the pH from the pOH:
   \[ \text{pH} = 14 - \text{pOH} \]

By applying these steps, you can determine the pH of the given solution.
Transcribed Image Text:**Question:** What is the pH of a 0.043 M solution of potassium hydroxide? **Answer Box:** _Type your answer..._ **Description:** This image is a question prompt from an educational setting, likely focusing on chemistry. The question asks for the calculation of the pH of a potassium hydroxide (KOH) solution with a concentration of 0.043 M (molarity). **Explanation:** To solve this, you need to understand that potassium hydroxide is a strong base, which means it completely dissociates in water. The concentration of OH⁻ ions will be the same as the concentration of the KOH solution. 1. Calculate the pOH of the solution: \[ \text{pOH} = -\log[\text{OH}^-] \] 2. Calculate the pH from the pOH: \[ \text{pH} = 14 - \text{pOH} \] By applying these steps, you can determine the pH of the given solution.
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