Domanda del libro di testo
Which of the following species behave as strong acids or as
strong bases in aqueous solution?
(a) HNO2 (b) HNO3(c) NH4+ (d) Cl-
874
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 79c
Which of the indicators given in Figure 16.5, methyl violet, bromcresol green, phenol red, or thymolphthalein, would be most appropriate to detect a pH change from: (c) 2 to 0?
Guida verificata passo dopo passo1
Identify the pH range of interest, which is from 2 to 0.
Review the pH range of each indicator: Methyl violet, Bromcresol green, Phenol red, and Thymolphthalein.
Determine which indicator has a color change range that includes the pH range from 2 to 0.
Methyl violet typically changes color in the pH range of 0 to 1.6, making it suitable for detecting changes from 2 to 0.
Conclude that Methyl violet is the most appropriate indicator for detecting a pH change from 2 to 0.
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:
2mConcetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
pH Scale
The pH scale measures the acidity or basicity of a solution, ranging from 0 to 14. A pH of 0 to 6 indicates acidic conditions, while a pH of 7 is neutral, and 8 to 14 indicates basic conditions. Understanding the pH scale is crucial for selecting appropriate indicators that change color at specific pH levels.
Video consigliato:
Percorso guidato
02:33
The pH Scale
Acid-Base Indicators
Acid-base indicators are substances that change color in response to changes in pH. Each indicator has a specific pH range over which it changes color, making it suitable for detecting pH changes in that range. For example, phenol red changes from yellow in acidic conditions to red in neutral to basic conditions, while thymolphthalein transitions from colorless in acidic to blue in basic conditions.
Video consigliato:
Percorso guidato
04:30Acid-Base Indicators
Choosing the Right Indicator
Selecting the appropriate indicator for a specific pH range is essential for accurate pH detection. In this case, to detect a pH change from 2 to 0, an indicator that operates effectively in the acidic range (0-6) is needed. Analyzing the color change ranges of the indicators provided will help determine which one is most suitable for this specific pH transition.
Video consigliato:
Percorso guidato
04:30Acid-Base Indicators
Pratica correlata
Domanda del libro di testo
Which of the indicators given in Figure 16.5, methyl violet, bromcresol green, phenol red, or thymolphthalein, would be most appropriate to detect a pH change from: (b) 8 to 10?
359
views
Domanda del libro di testo
Calculate the pH of the following solutions:
(c) 0.075 M NaOH
672
views
Domanda del libro di testo
Calculate the H3O+ concentration to the correct number of significant figures for solutions with the following pH values. (d) 14.25
686
views
Domanda del libro di testo
Calculate the H3O+ concentration to the correct number of significant figures for solutions with the following pH values. (e) -1.0
678
views