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What is the primary role of a buffer solution?

Practice Questions

Q1
What is the primary role of a buffer solution?
  1. To change pH rapidly
  2. To maintain a stable pH
  3. To neutralize acids only
  4. To neutralize bases only

Questions & Step-by-Step Solutions

What is the primary role of a buffer solution?
  • Step 1: Understand what a buffer solution is. A buffer solution is a special type of liquid that can resist changes in pH.
  • Step 2: Know what pH means. pH is a measure of how acidic or basic a solution is.
  • Step 3: Learn that buffers are made of weak acids and their salts or weak bases and their salts.
  • Step 4: Recognize that when you add a small amount of acid (which lowers pH) or base (which raises pH) to a buffer, it doesn't change the pH much.
  • Step 5: Conclude that the primary role of a buffer solution is to keep the pH stable, even when small amounts of acids or bases are added.
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