
Understanding Buffer Solutions
Flashcard
•
Science
•
11th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a buffer solution?
Back
A buffer solution is a solution that resists changes in pH when small amounts of acid or base are added.
2.
FLASHCARD QUESTION
Front
How does a buffer solution maintain pH?
Back
A buffer solution maintains pH by using a weak acid and its conjugate base (or a weak base and its conjugate acid) to neutralize added acids or bases.
3.
FLASHCARD QUESTION
Front
What happens to the pH of a buffer solution when a small amount of acid is added?
Back
The pH remains roughly the same.
4.
FLASHCARD QUESTION
Front
Why is the equilibrium of a weak acid in a buffer solution mostly towards the left-hand side?
Back
Because it partially dissociates.
5.
FLASHCARD QUESTION
Front
What is the role of a buffer solution?
Back
To resist changes in pH when acids or alkalis are added.
6.
FLASHCARD QUESTION
Front
What is buffer capacity?
Back
Buffer capacity is the ability of a buffer solution to resist changes in pH upon the addition of an acid or base.
7.
FLASHCARD QUESTION
Front
What happens when the buffer capacity is overwhelmed?
Back
When the buffer capacity is overwhelmed, the pH of the solution changes significantly.
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