5. The pKa of acetic acid (HA) is approximately 4.8. If a solution of acetic acid is brought to pH = 4.8, what can we say about the concentrations of HA and its conjugate base A? a) The solution is acidic so there is more HA than A". b) HA is a weak acid so it dissociates easily and [A] is higher than [HA]. c) Their concentrations are the same. d) We can't say, it depends on the initial concentration of HA. e) We can't say, it depends on temperature.

5. The pKa of acetic acid (HA) is approximately 4.8. If a solution of acetic acid is brought to pH = 4.8, what can we say about the concentrations of HA and its conjugate base A? a) The solution is acidic so there is more HA than A". b) HA is a weak acid so it dissociates easily and [A] is higher than [HA]. c) Their concentrations are the same. d) We can't say, it depends on the initial concentration of HA. e) We can't say, it depends on temperature.

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter10: Fuels, Organic Chemicals, And Polymers

Section: Chapter Questions

Problem 115QRT

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