Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Explain what a polyprotic acid is.
💡 Hint: Think of acids that have multiple H+ ions to donate.
Question 2
Easy
How many equivalence points does a diprotic acid have?
💡 Hint: Consider how many protons are ionizable.
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Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
How many equivalence points does a triprotic acid have?
- 1
- 2
- 3
- 4
💡 Hint: Consider how many protons the acid can donate.
Question 2
True or False: The pH at the equivalence point of a strong acid-weak base titration is always greater than 7.
- True
- False
💡 Hint: Think about the nature of the solutions involved.
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Challenge Problems
Push your limits with challenges.
Question 1
In a titration of phosphoric acid (H3PO4, a triprotic acid) with NaOH, sketch a titration curve and label the equivalence points. How does the curve change with strong vs weak bases?
💡 Hint: Remember to account for where buffer regions stabilize the pH in between each rise.
Question 2
Given a diprotic acid with Ka1 = 0.01 and Ka2 = 0.0001, calculate the pH at the first equivalence point after titration with a strong base.
💡 Hint: Focus on the concentration of H+ produced and relate it through the Ka1 value.
Challenge and get performance evaluation