Podcast
Play an AI-generated podcast conversation about this lesson
Download our mobile app to listen on the go
Get App
Questions and Answers
Which of the following statements is true regarding buffers?
Which of the following statements is true regarding buffers?
- Buffers work by changing the ratio of acid to base in a solution
- Buffers are not important in maintaining the pH of biological systems
- Buffers consist of a strong acid and its conjugate base
- The concentration of weak acid and salt in buffers is small compared to ions added or removed (correct)
How do buffers resist changes in pH?
How do buffers resist changes in pH?
- By maintaining a stable ratio of acid to base (correct)
- By adding more protons to the solution
- By converting weak acid to base when hydroxide ions are removed
- By removing all ions from the solution
What determines the ratio of acid to base in a buffer?
What determines the ratio of acid to base in a buffer?
- The pH of the solution
- The concentration of protons in the solution
- The pKa of the buffer (correct)
- The concentration of hydroxide ions in the solution
Flashcards are hidden until you start studying
Study Notes
- The kidneys and lungs work together to maintain blood pH of 7.4
- Buffers in the blood help control pH by resisting changes
- Buffers consist of weak acid and its conjugate base (salt)
- Weak acid and salt concentrations are large compared to ions added or removed
- When protons are added, some base is converted to weak acid
- When hydroxide ions are removed, weak acid is converted to base
- Acid and base concentration changes are small relative to amounts present in solution
- Buffers work by maintaining a stable ratio of acid to base
- The ratio of acid to base is determined by the pKa of the buffer
- Buffers are important in maintaining the pH of biological systems.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
