Ch.15 - Acid and Base EquilibriumWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: The term “Ka for the ammonium ion” describes the equilibrium constant for which of the following reactions? 1. NH3 + H3O+ ⇌ NH4+ + H2O 2. NH3 + H2O ⇌ NH4+ + OH− 3. NH4+ + OH− ⇌ NH3 + H2O  4. NH4+ + H2O ⇌ NH3 + H3O+ 5. The term is misleading, because the ammonium ion is not an acid. 6. NH4Cl(solid) + H2O ⇌ NH4+ + Cl−

Problem

The term “Ka for the ammonium ion” describes the equilibrium constant for which of the following reactions?

1. NH3 + H3O+ ⇌ NH4+ + H2O

2. NH3 + H2O ⇌ NH4+ + OH

3. NH4+ + OH ⇌ NH3 + H2

4. NH4+ + H2O ⇌ NH3 + H3O+

5. The term is misleading, because the ammonium ion is not an acid.

6. NH4Cl(solid) + H2O ⇌ NH4+ + Cl