Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define a polyprotic acid.
💡 Hint: Think about how many protons can be donated.
Question 2
Easy
What does the term Ka represent?
💡 Hint: It's related to the strength of the acid.
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Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is a characteristic of polyprotic acids?
- They can donate one proton
- They can donate multiple protons
- They do not dissociate
💡 Hint: Think of acids that can give away at least two hydrogens.
Question 2
True or False: In weak polyprotic acids, each dissociation has the same strength.
- True
- False
💡 Hint: Consider how the strength of an acid is defined by its dissociation constants.
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Challenge Problems
Push your limits with challenges.
Question 1
A solution of 0.1 M sulfuric acid is prepared. Calculate the pH considering both the first and second dissociations.
💡 Hint: Use an ICE table to account for both dissociations.
Question 2
Calculate the pH of a 0.05 M phosphoric acid solution by using the first dissociation constant and ignoring property contributions from other steps.
💡 Hint: Focus on the concentration changes for just the first dissociation.
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