Ch.16 - Aqueous Equilibrium WorksheetSee 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 titration shown here has an equivalence point at pH = 3.2. Identify which of the following indicators would be appropriate for this titration. Check all that apply.a. metacresol purple  pKa = 1.51

Solution: The titration shown here has an equivalence point at pH = 3.2. Identify which of the following indicators would be appropriate for this titration. Check all that apply.a. metacresol purple  pKa = 1.51

Problem

The titration shown here has an equivalence point at pH = 3.2. Identify which of the following indicators would be appropriate for this titration. Check all that apply.

a. metacresol purple  pKa = 1.51, 8.32

b. ethyl red  pKa = 5.42

c. quinaldine red  pKa = 2.63

d. bromothymol blue  pKa = 7.0 

e. phenolphthalein  pKa = 9.50

f. thymol blue  pKa = 1.65, 9.20

Solution
  • If we will analyze the graph and the given info, we can see that  equivalence point is at 3.2

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