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. 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)

Recall the given reaction, NH4+ aq + H2O l ↔ NH3 aq + H3O+…

Answered: The pKa of NH4+ is 9.25. Predict…

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.

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter3: Chemical Reactions

Section: Chapter Questions

Problem 62PS

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Concept explainers

Ionic Equilibrium

Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.

Arrhenius Acid

Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red.

Bronsted Lowry Base In Inorganic Chemistry

Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.

Question

The pK_a of NH₄⁺ is 9.25. Predict whether the acid form (NH₄⁺) or the base form (NH₃) is predominant at pH = 7.4. Explain.

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)

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