7.6 - HL: Calculations Involving Polyprotic Acids
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Practice Questions
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Define a polyprotic acid.
💡 Hint: Think about how many protons can be donated.
What does the term Ka represent?
💡 Hint: It's related to the strength of the acid.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is a characteristic of polyprotic acids?
💡 Hint: Think of acids that can give away at least two hydrogens.
True or False: In weak polyprotic acids, each dissociation has the same strength.
💡 Hint: Consider how the strength of an acid is defined by its dissociation constants.
2 more questions available
Challenge Problems
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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.
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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