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AP Chemistry
8.7 pH and pKa
8.5 Acid-Base Titrations
IntermediateMCQGraphicalConceptual22.1k
Titration curve for 50.0 mL of HA titrated with 0.100 M NaOH.
Titration curve for 50.0 mL of HA titrated with 0.100 M NaOH.
A student titrates a \(50.0\text{ mL}\) sample of a weak monoprotic acid, \(\text{HA(aq)}\), with \(0.100\text{ M }\text{NaOH(aq)}\). The titration curve for the process is shown below. Based on the titration curve, which of the following correctly identifies the approximate \(K_a\) of \(\text{HA}\) and provides the correct justification?

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