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.

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.

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter12: Chemical Equilibrium

Section: Chapter Questions

Problem 12.97PAE

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