A 0.025 M solution of an unknown organic acid has a pH of 5.70. 2.1 By means of a full calculation, determine the value of the ionisation constant of the conjugate base of this acid. You may use “HA" to denote the formula of the acid. - You may make certain assumptions to simplify your calculations 2.2 A certain amount of the sodium salt of the conjugate base of the acid was added to the system. Will the pH of the resulting solution increase or decrease, compared to the original given value? Explain your answer in a short sentence or two.

A 0.025 M solution of an unknown organic acid has a pH of 5.70. 2.1 By means of a full calculation, determine the value of the ionisation constant of the conjugate base of this acid. You may use “HA" to denote the formula of the acid. - You may make certain assumptions to simplify your calculations 2.2 A certain amount of the sodium salt of the conjugate base of the acid was added to the system. Will the pH of the resulting solution increase or decrease, compared to the original given value? Explain your answer in a short sentence or two.

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter15: Acid–base Equilibria

Section: Chapter Questions

Problem 99AP

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