Dilute solutions of the same weak acid (pKą = 4.5) ranging in concentration from 2 × 10-6 M to 2 × 10-2 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 higher the concentration of the acid, the sharper the inflection at the equivalence point. 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. The shape of the titration curve depends only on the pKa of the acid, not its concentration.
Dilute solutions of the same weak acid (pKą = 4.5) ranging in concentration from 2 × 10-6 M to 2 × 10-2 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 higher the concentration of the acid, the sharper the inflection at the equivalence point. 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. The shape of the titration curve depends only on the pKa of the acid, not its concentration.
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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:Dilute solutions of the same weak acid (pKą = 4.5) ranging in concentration from 2 × 10-6 M to 2 × 10-2 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 higher the concentration of the acid, the sharper the inflection at the equivalence point.
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.
The shape of the titration curve depends only on the pKa of the acid, not its concentration.
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