A buffer solution is made that is 0.395 M in HF and 0.395 M In NaF. (1) If Ka for HF is 7.20x10-4, what is the pH of the buffer solution? (2) Write the net lonic equation for the reaction that occurs when 0.100 mol KOH is added to 1.00 L of the buffer solution.

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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**Buffer Solution Problem**

A buffer solution is made containing 0.395 M in HF and 0.395 M in NaF.

1. **Calculate the pH of the Buffer Solution**
   - Given: \( K_a \) for HF is \( 7.20 \times 10^{-4} \).
   - Task: Determine the pH of the buffer solution.

2. **Net Ionic Equation for Reaction with KOH**
   - Given: 0.100 mol KOH is added to 1.00 L of the buffer solution.
   - Task: Write the net ionic equation for this reaction.

**Answer Input Sections:**
- For Part 1, a text box is provided for the pH calculation.
- For Part 2, there are input boxes for the reactants and products of the net ionic equation.

**Navigation and Submission:**
- Options to submit the answer or retry the entire group of questions.
- Indicates there are 9 more group attempts remaining.
- Navigation buttons for "Previous" and "Next" questions.

This exercise is designed to test understanding of buffer solutions and chemical equilibrium. Please use appropriate theoretical concepts and calculations to solve the problem.
Transcribed Image Text:**Buffer Solution Problem** A buffer solution is made containing 0.395 M in HF and 0.395 M in NaF. 1. **Calculate the pH of the Buffer Solution** - Given: \( K_a \) for HF is \( 7.20 \times 10^{-4} \). - Task: Determine the pH of the buffer solution. 2. **Net Ionic Equation for Reaction with KOH** - Given: 0.100 mol KOH is added to 1.00 L of the buffer solution. - Task: Write the net ionic equation for this reaction. **Answer Input Sections:** - For Part 1, a text box is provided for the pH calculation. - For Part 2, there are input boxes for the reactants and products of the net ionic equation. **Navigation and Submission:** - Options to submit the answer or retry the entire group of questions. - Indicates there are 9 more group attempts remaining. - Navigation buttons for "Previous" and "Next" questions. This exercise is designed to test understanding of buffer solutions and chemical equilibrium. Please use appropriate theoretical concepts and calculations to solve the problem.
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