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4 cards from this section. Quick, good the night before a test.
Define a polyprotic acid.
Think about how many protons can be donated.
What does the term Ka represent?
It's related to the strength of the acid.
What is a characteristic of polyprotic acids?
Think of acids that can give away at least two hydrogens.
True or False: In weak polyprotic acids, each dissociation has the same strength.
Consider how the strength of an acid is defined by its dissociation constants.
A solution of 0.1 M sulfuric acid is prepared. Calculate the pH considering both the first and second dissociations.
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.
Focus on the concentration changes for just the first dissociation.
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