Dilute solutions of the same weak acid (pK, = 4.5) ranging in concentration from 2 × 10“ M to 2x 10 M (0.002 to 20 mM) are titrated with a strong base that is five times more concentrated than the acid. At low concentrations of a weak acid, how does the concentration of the acid affect the shape of the titration curve? The shape of the titration curve depends only on the pK, of the acid, not its concentration. The lower the concentration of the acid, the sharper the inflection at the equivalence point. The shape of the titration curve is the same, regardless of the acid's concentration. O The higher the concentration of the acid, the sharper the inflection at the equivalence point.

Question
Dilute solutions of the same weak acid (pK, = 4.5) ranging in concentration from 2 × 10“ M to 2x 10 M
(0.002 to 20 mM) are titrated with a strong base that is five times more concentrated than the acid.
At low concentrations of a weak acid, how does the concentration of the acid affect the shape of the titration curve?
The shape of the titration curve depends only on the pK, of the acid, not its concentration.
The lower the concentration of the acid, the sharper the inflection at the equivalence point.
The shape of the titration curve is the same, regardless of the acid's concentration.
O The higher the concentration of the acid, the sharper the inflection at the equivalence point.
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Transcribed Image Text

Dilute solutions of the same weak acid (pK, = 4.5) ranging in concentration from 2 × 10“ M to 2x 10 M (0.002 to 20 mM) are titrated with a strong base that is five times more concentrated than the acid. At low concentrations of a weak acid, how does the concentration of the acid affect the shape of the titration curve? The shape of the titration curve depends only on the pK, of the acid, not its concentration. The lower the concentration of the acid, the sharper the inflection at the equivalence point. The shape of the titration curve is the same, regardless of the acid's concentration. O The higher the concentration of the acid, the sharper the inflection at the equivalence point.

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