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What is the effect of adding a strong acid to a buffer solution?

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Question: What is the effect of adding a strong acid to a buffer solution?

Options:

  1. pH increases
  2. pH decreases significantly
  3. pH remains relatively constant
  4. pH becomes neutral

Correct Answer: pH remains relatively constant

Solution: 

A buffer solution is designed to resist changes in pH, so adding a strong acid will cause only a small change in pH.

What is the effect of adding a strong acid to a buffer solution?

Practice Questions

Q1
What is the effect of adding a strong acid to a buffer solution?
  1. pH increases
  2. pH decreases significantly
  3. pH remains relatively constant
  4. pH becomes neutral

Questions & Step-by-Step Solutions

What is the effect of adding a strong acid to a buffer solution?
Correct Answer: pH mein sirf thoda sa badlav hoga.
  • Step 1: Understand what a buffer solution is. A buffer solution is a mixture that can maintain a stable pH when small amounts of acid or base are added.
  • Step 2: Know what a strong acid is. A strong acid is a substance that completely dissociates in water, releasing a lot of hydrogen ions (H+).
  • Step 3: When you add a strong acid to a buffer, the buffer will react with the added hydrogen ions.
  • Step 4: The buffer contains weak acids and their conjugate bases, which help neutralize the added hydrogen ions.
  • Step 5: Because of this reaction, the pH of the buffer solution will change, but only slightly.
  • Step 6: The buffer's ability to resist pH changes is what makes it effective, so the overall effect is a small change in pH.
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