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Questions and Answers
Which of the following best describes a buffer solution?
Which of the following best describes a buffer solution?
- A solution that resists changes in pH when an acid or base is added (correct)
- A solution that can only be formed by mixing an acid and a base
- A solution that reacts strongly with acids and bases
- A solution that always has a pH of 7
What is the main purpose of a buffer solution?
What is the main purpose of a buffer solution?
- To increase the pH of a solution
- To neutralize any solution it is added to
- To decrease the pH of a solution
- To maintain a stable pH (correct)
How does a buffer solution resist changes in pH?
How does a buffer solution resist changes in pH?
- By only allowing a specific range of pH values
- By containing a weak acid and its conjugate base, or a weak base and its conjugate acid (correct)
- By increasing the concentration of hydrogen ions in the solution
- By reacting with all acids and bases added to it
