Acid-Base Titrations

AP Chemistry· difficulty 4/5

Halfway through a weak-acid-strong-base titration, the major species are

A
$Nearly all A⁻$
B
$Nearly all HA$
C
$Roughly equal HA and A⁻$
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D
$Only OH⁻$

Explanation

Half-equivalence: half the HA is neutralized \to [HA] \approx [A⁻].

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