Acid/Base Equilbrium Calculations- 1. A weak monoprotic acid, HA dissociates by 0.252 % and has a pH of 3.50. Calculate the Ka value for the acid HA. Record your answer in scientific notation to 3 sig figs. 2. A 0.740 M solution of the salt NaA has a pH of 9.76. Calculate the Ka value for the acid HA. Record your answer in scientific notation to 3 sig figs.

Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter14: Acids And Bases
Section: Chapter Questions
Problem 96QRT
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Acid/Base Equilbrium Calculations-
1. A weak monoprotic acid, HA dissociates
by 0.252 % and has a pH of 3.50. Calculate
the Ka value for the acid HA. Record your
answer in scientific notation to 3 sig figs.
2. A 0.740 M solution of the salt NaA has a
pH of 9.76. Calculate the Ka value for the
acid HA. Record your answer in scientific
notation to 3 sig figs.
Transcribed Image Text:Acid/Base Equilbrium Calculations- 1. A weak monoprotic acid, HA dissociates by 0.252 % and has a pH of 3.50. Calculate the Ka value for the acid HA. Record your answer in scientific notation to 3 sig figs. 2. A 0.740 M solution of the salt NaA has a pH of 9.76. Calculate the Ka value for the acid HA. Record your answer in scientific notation to 3 sig figs.
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