Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define buffer capacity.
💡 Hint: Think about the role of buffers in pH stabilization.
Question 2
Easy
What components typically make up a buffer?
💡 Hint: Consider the acid-base pairs.
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Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What defines buffer capacity?
- The amount of acid a buffer can handle.
- The ability to change pH rapidly.
- The ability to resist pH changes.
💡 Hint: Think about what buffers actually do.
Question 2
True or False: Buffers are only made of weak acids.
- True
- False
💡 Hint: Remember the definitions of buffer systems.
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Challenge Problems
Push your limits with challenges.
Question 1
Design a buffer system that can maintain a pH of 7.4, suitable for biological applications. Which weak acid and its conjugate base would you choose?
💡 Hint: Use the Henderson-Hasselbalch equation to support your argument.
Question 2
A buffer composed of acetic acid and sodium acetate has a capacity for 0.1 M of strong acid. Calculate how many moles of strong acid can be added before the pH starts to decline significantly.
💡 Hint: Consider which concentrations are involved and how they interact.
Challenge and get performance evaluation