Domanda del libro di testo
The following picture represents the hydrated metal cation M1H2O26 n + , where n = 1, 2, or 3.
(b) Does the equilibrium constant increase, decrease, or remain the same as the value of n increases? Explain.
314
views
Ch.16 - Aqueous Equilibria: Acids & Bases
McMurry8th EditionChemistryISBN: 9781292336145
Non è quello che usi tu?Cambia libro di testoScegli un libro di testo diverso
TOC.tableOfContents
- Ch.1 - Chemical Tools: Experimentation & Measurement170
- Ch.2 - Atoms, Molecules & Ions160
- Ch.3 - Mass Relationships in Chemical Reactions169
- Ch.4 - Reactions in Aqueous Solution199
- Ch.5 - Periodicity & Electronic Structure of Atoms102
- Ch.6 - Ionic Compounds: Periodic Trends and Bonding Theory92
- Ch.7 - Covalent Bonding and Electron-Dot Structures61
- Ch.8 - Covalent Compounds: Bonding Theories and Molecular Structure59
- Ch.9 - Thermochemistry: Chemical Energy122
- Ch.10 - Gases: Their Properties & Behavior155
- Ch.11 - Liquids & Phase Changes54
- Ch.12 - Solids and Solid-State Materials73
- Ch.13 - Solutions & Their Properties120
- Ch.14 - Chemical Kinetics98
- Ch.15 - Chemical Equilibrium125
- Ch.16 - Aqueous Equilibria: Acids & Bases110
- Ch.17 - Applications of Aqueous Equilibria147
- Ch.18 - Thermodynamics: Entropy, Free Energy & Equilibrium86
- Ch.19 - Electrochemistry154
- Ch.20 - Nuclear Chemistry96
- Ch.21 - Transition Elements and Coordination Chemistry156
- Ch.22 - The Main Group Elements187
- Ch.23 - Organic and Biological Chemistry51
Capitolo 16, Problema 43c
The following pictures represent solutions of three salts NaA (A- = X-, Y-, or Z-); water molecules and Na+ ions have been omitted for clarity.
(c) Which A- anion has the smallest value of pKb?
Guida verificata passo dopo passo1
Identify the anions in each solution: HA (KC), OH- (KD), and A- (KE).
Recall that pKb is a measure of the basicity of an anion; a smaller pKb indicates a stronger base.
Observe the number of OH- ions in each solution, as they indicate the extent of the reaction A- + H2O -> HA + OH-.
Compare the concentration of OH- ions in each solution: more OH- ions suggest a stronger base and thus a smaller pKb.
Determine which solution has the most OH- ions, indicating the anion with the smallest pKb.
Risposta video verificata per un problema simile:
Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
3mConcetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
pKb and Basicity
pKb is a measure of the basicity of a base in solution, representing the equilibrium constant for the reaction of the base with water to form hydroxide ions. A lower pKb value indicates a stronger base, meaning it more readily accepts protons. Understanding pKb is essential for comparing the basicity of different anions, as it directly relates to their ability to deprotonate water and generate hydroxide ions.
Video consigliato:
Percorso guidato
01:04
Balancing Basic Redox Reactions
Anion Types and Their Properties
Anions can vary significantly in their chemical properties and behavior in solution. For instance, anions like OH- are strong bases, while others may be weaker. The nature of the anion affects its interaction with water and its ability to influence the pH of the solution. Recognizing the characteristics of the anions in the question (HA, OH-, and A-) is crucial for determining which has the smallest pKb.
Video consigliato:
Percorso guidato
02:54Physical Properties
Equilibrium and Acid-Base Reactions
Acid-base reactions involve the transfer of protons (H+) between species, establishing an equilibrium between acids and their conjugate bases. The position of this equilibrium is influenced by the strength of the acids and bases involved, which is quantified by their respective pKa and pKb values. Understanding this equilibrium helps in predicting the behavior of the anions in the solutions and their relative basicity.
Video consigliato:
Percorso guidato
01:09Acid-Base Reaction
Pratica correlata
Domanda del libro di testo
The following pictures represent solutions of three salts NaA (A- = X-, Y-, or Z-); water molecules and Na+ ions have been omitted for clarity.
(b) Which A- anion has the strongest conjugate acid?
330
views
Domanda del libro di testo
The following pictures represent solutions of three salts NaA (A- = X-, Y-, or Z-); water molecules and Na+ ions have been omitted for clarity.
(a) Arrange the three A- anions in order of increasing base strength.
421
views
Domanda del libro di testo
The following picture represents the hydrated metal cation M1H2O26 n + , where n = 1, 2, or 3.
(a) Write a balanced equation for the reaction of M1H2O26 n + with water and write the equilibrium equation for the reaction.
254
views
Domanda del libro di testo
Which of the following pictures represents a solution of a weak diprotic acid, H2A? (Water molecules have been omitted for clarity.) Which pictures represent an impossible situation? Explain.
(a) (b) (c) (d)
571
views
Domanda del libro di testo
The following picture represents the hydrated metal cation M1H2O26 n + , where n = 1, 2, or 3. (c) Which M1H2O26n + ion 1n = 1,2, or 32 is the strongest acid, and which has the strongest conjugate base?
260
views