Chemistry / Unit 10 Chem 1878 short lesson, about 20 seconds
Titration Curve: Weak Base–Strong Acid Shape
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The idea
A weak base–strong acid titration curve starts lower than a strong base's, buffers near half-equivalence, and reaches equivalence point below pH 7 from acidic salt hydrolysis.
In practice
Titrating ammonia with HCl crosses its equivalence point near pH 5, below neutral.
Where people slip
This curve is Chem 1876's weak acid–strong base curve inverted, not the strong-acid–strong-base curve mirrored; expecting a pH-7 crossing is a standard error.
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