Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define a polyprotic acid.
💡 Hint: What does 'poly' in polyprotic imply?
Question 2
Easy
What does Ka measure?
💡 Hint: Think about what kind of equilibrium it represents.
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Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the first dissociation reaction of sulfuric acid?
💡 Hint: Recall the structure of sulfuric acid to help identify the products.
Question 2
True or False: The dissociation constant Ka2 is always greater than Ka1 for polyprotic acids.
💡 Hint: Think about what happens when you have a negatively charged ion.
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Challenge Problems
Push your limits with challenges.
Question 1
Given a diprotic acid with Ka1 = 1.0 x 10^-4 and Ka2 = 3.0 x 10^-8, calculate the pH of a 0.05 M solution.
💡 Hint: Don't forget to apply the proper concentrations related to the first dissociation only.
Question 2
Given the titration of H₂CO₃ with NaOH, describe the expectations regarding the titration curve’s shape and the nature of equivalence points.
💡 Hint: Recall what happens in each stage of a diprotic acid’s neutralization.
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