When ammonium (NH4*) is placed in water, a chemical reaction occurs and an equilibrium is established as shown below. NH4+ (aq) + H₂O (1) ⇒ NH3 (aq) + H3O+ (aq) The pKa of NH4* is 9.25. Predict whether the acid form (NH4*) or the base form (NH3) is predominant at pH = 7.4. Explain your answer.

Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter16: Reactions Between Acids And Bases
Section: Chapter Questions
Problem 16.83QE
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When ammonium (NH4*) is placed in water, a chemical reaction occurs and an equilibrium is established as shown below.
NH4+ (aq) + H₂O (1) ≥ NH3 (aq) + H3O+ (aq)
The pK, of NH4* is 9.25. Predict whether the acid form (NH4*) or the base form (NH3) is predominant at pH = 7.4. Explain your answer.
Transcribed Image Text:When ammonium (NH4*) is placed in water, a chemical reaction occurs and an equilibrium is established as shown below. NH4+ (aq) + H₂O (1) ≥ NH3 (aq) + H3O+ (aq) The pK, of NH4* is 9.25. Predict whether the acid form (NH4*) or the base form (NH3) is predominant at pH = 7.4. Explain your answer.
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