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Topic 8.10 · Buffer Capacity

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AP Chemistry · Topic 8.10: Buffer CapacityOpen topic

Original PrepAtlas question. This is not an official College Board question.

Equal volumes of two buffers contain the same HA/A− pair in a1:1 ratio. Their component concentrations are0.010 M each and0.100 M each. Which comparison is correct?

AThe dilute buffer has higher capacity because it contains more waterBThe concentrated buffer must have pH one unit higherCTheir capacities must match because their pH values matchDTheir approximate pH values match, but the more concentrated buffer resists added acid/base more strongly.

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Topic 8.10 · Buffer Capacity

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