What change will be caused by the addition of a small amount of HCI to a solution containing fluoride ions and hydrogen fluoride? Select one: O a. The concentration of fluoride ions will decrease and the concentration of hydrogen fluoride will increase. O b. The concentration of fluoride ions will increase and the concentration of hydrogen fluoride will decrease. O c. The concentration of the hydronium ions will increase significantly. O d. The concentration of fluoride ions will increase and the concentration of hydrogen fluoride will also increase. O e. The fluoride ions will precipitate out of the solution as its acid salt.
What change will be caused by the addition of a small amount of HCI to a solution containing fluoride ions and hydrogen fluoride? Select one: O a. The concentration of fluoride ions will decrease and the concentration of hydrogen fluoride will increase. O b. The concentration of fluoride ions will increase and the concentration of hydrogen fluoride will decrease. O c. The concentration of the hydronium ions will increase significantly. O d. The concentration of fluoride ions will increase and the concentration of hydrogen fluoride will also increase. O e. The fluoride ions will precipitate out of the solution as its acid salt.
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![### Understanding the Effect of Adding HCl to a Fluoride and Hydrogen Fluoride Solution
When hydrochloric acid (HCl) is added to a solution that contains fluoride ions (F⁻) and hydrogen fluoride (HF), several changes can occur in the concentrations of the ions present in the solution. This concept is crucial for understanding acid-base reaction dynamics.
#### Multiple Choice Question:
Consider the following question and select the correct answer based on your understanding of chemical equilibria:
**What change will be caused by the addition of a small amount of HCl to a solution containing fluoride ions and hydrogen fluoride?**
**Select one:**
- **a.** The concentration of fluoride ions will decrease, and the concentration of hydrogen fluoride will increase.
- **b.** The concentration of fluoride ions will increase, and the concentration of hydrogen fluoride will decrease.
- **c.** The concentration of the hydronium ions will increase significantly.
- **d.** The concentration of fluoride ions will increase, and the concentration of hydrogen fluoride will also increase.
- **e.** The fluoride ions will precipitate out of the solution as its acid salt.
### Explanation
To determine the correct answer, it's important to understand the concept of Le Chatelier's principle, which predicts the shift in equilibrium when a change in concentration occurs.
Addition of HCl to the solution increases the concentration of hydronium ions (H₃O⁺). The equilibrium reaction for HF dissociation is as follows:
\[ \text{HF} \leftrightarrow \text{H}^+ + \text{F}^- \]
Adding HCl, which dissociates into \(\text{H}^+\) and \(\text{Cl}^- \) in the solution, significantly increases the concentration of \(\text{H}^+\) ions. According to Le Chatelier's principle, the equilibrium will shift to counteract this increase by combining \(\text{H}^+\) with \(\text{F}^- \) ions to form more HF.
Therefore, the concentration of fluoride ions (\(\text{F}^- \)) will decrease, and the concentration of hydrogen fluoride (HF) will increase.
### Correct Answer:
- **a.** The concentration of fluoride ions will decrease, and the concentration of hydrogen fluoride will increase.
Understanding this reaction is essential for grasping how changes in concentration can affect chemical equilibria in general.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6441173a-0d65-4fbd-a72a-c88019a4dfc8%2Fb4f6b471-3423-452c-949a-948123d5bf86%2Fh4c6mnr_processed.jpeg&w=3840&q=75)
Transcribed Image Text:### Understanding the Effect of Adding HCl to a Fluoride and Hydrogen Fluoride Solution
When hydrochloric acid (HCl) is added to a solution that contains fluoride ions (F⁻) and hydrogen fluoride (HF), several changes can occur in the concentrations of the ions present in the solution. This concept is crucial for understanding acid-base reaction dynamics.
#### Multiple Choice Question:
Consider the following question and select the correct answer based on your understanding of chemical equilibria:
**What change will be caused by the addition of a small amount of HCl to a solution containing fluoride ions and hydrogen fluoride?**
**Select one:**
- **a.** The concentration of fluoride ions will decrease, and the concentration of hydrogen fluoride will increase.
- **b.** The concentration of fluoride ions will increase, and the concentration of hydrogen fluoride will decrease.
- **c.** The concentration of the hydronium ions will increase significantly.
- **d.** The concentration of fluoride ions will increase, and the concentration of hydrogen fluoride will also increase.
- **e.** The fluoride ions will precipitate out of the solution as its acid salt.
### Explanation
To determine the correct answer, it's important to understand the concept of Le Chatelier's principle, which predicts the shift in equilibrium when a change in concentration occurs.
Addition of HCl to the solution increases the concentration of hydronium ions (H₃O⁺). The equilibrium reaction for HF dissociation is as follows:
\[ \text{HF} \leftrightarrow \text{H}^+ + \text{F}^- \]
Adding HCl, which dissociates into \(\text{H}^+\) and \(\text{Cl}^- \) in the solution, significantly increases the concentration of \(\text{H}^+\) ions. According to Le Chatelier's principle, the equilibrium will shift to counteract this increase by combining \(\text{H}^+\) with \(\text{F}^- \) ions to form more HF.
Therefore, the concentration of fluoride ions (\(\text{F}^- \)) will decrease, and the concentration of hydrogen fluoride (HF) will increase.
### Correct Answer:
- **a.** The concentration of fluoride ions will decrease, and the concentration of hydrogen fluoride will increase.
Understanding this reaction is essential for grasping how changes in concentration can affect chemical equilibria in general.
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