Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a polyprotic acid?
💡 Hint: Think about how many protons an acid can donate.
Question 2
Easy
Give an example of a diprotic acid.
💡 Hint: Consider well-known strong acids.
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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 polyprotic acid?
- An acid that can donate one proton
- An acid that can donate two or more protons
- An acid that does not dissociate
💡 Hint: Think about how many protons a polyprotic acid can donate.
Question 2
True or False: The second dissociation of most weak polyprotic acids is significant for calculating pH.
- True
- False
💡 Hint: Consider which dissociation provides most H+ ions.
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Challenge Problems
Push your limits with challenges.
Question 1
Calculate the pH of a 0.01 M solution of H₃PO₄ considering its first and second dissociation.
💡 Hint: Remember to include the original concentration changes for each successive Ka.
Question 2
For a 0.2 M solution of sulfuric acid, discuss the step-by-step calculation of pH considering both dissociation steps.
💡 Hint: Find out how to factor in each dissociation's contributions together.
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