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3 cards from this section. Quick, good the night before a test.
Define a polyprotic acid.
What does 'poly' in polyprotic imply?
What does Ka measure?
Think about what kind of equilibrium it represents.
What is the first dissociation reaction of sulfuric acid?
Recall the structure of sulfuric acid to help identify the products.
True or False: The dissociation constant Ka2 is always greater than Ka1 for polyprotic acids.
Think about what happens when you have a negatively charged ion.
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.
Don't forget to apply the proper concentrations related to the first dissociation only.
Given the titration of H₂CO₃ with NaOH, describe the expectations regarding the titration curve’s shape and the nature of equivalence points.
Recall what happens in each stage of a diprotic acid’s neutralization.
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