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Unit 8: Acids and Bases

Quick questions on pH and pKa - AP Chemistry Unit 8

2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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A buffer has pKa=5.0\text{p}K_a = 5.0, [A−]=0.20[\text{A}^-] = 0.20 M and [HA]=0.20[\text{HA}] = 0.20 M. Calculate the pH. [2 points]
What is q2?
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Explain how to increase a buffer's capacity without changing its pH. [2 points]

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