Practice Di- And Polybasic Acids And Di- And Polyacidic Bases (6.11.6)

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6 sample questions

Question 1.
Define a dibasic acid.
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Remember the number of H+ ions it can release.
Question 2.
What is meant by ionization constants?
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Think about how they relate to acid strength.
3Question 3.
What defines a polybasic acid?
- Can donate one proton
- Can donate two or more protons
- Neither
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Think of examples like sulfuric acid or phosphoric acid.
4Question 4.
True or False: Ka values increase with each successive ionization.
- True
- False
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Reflect on why it becomes harder to protonate an already negative ion.
Question 5.
Given the strength of H2SO4 as a strong acid, derive its pKa values based on its sequential ionization.
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Look up typical values of Ka for H2SO4.
Question 6.
Evaluate how the ionization constants of a dibasic acid would affect the pH if both solutions were mixed.
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Use the Henderson-Hasselbalch equation to approach this problem.

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