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2. Indicators are typically weak acids and the equilibrium can be described as follows: HInd+ H₂O H₂O+ + Ind- AH=-2 kJ/mol Assume that HInd is red in color and Ind- is blue in color. b) If a solution is purple (equal concentrations of the two species), what color will the solution turn when some NaOH or other strong base is added to the solution? Explain in terms of the Le Chatelier's principle. b) If a solution is purple (equal concentrations of the two species), what color will the solution turn when the system is cooled in an ice bath? Explain in terms of the Le Chatelier's principle.

2. Indicators are typically weak acids and the equilibrium can be described as follows: HInd+ H₂O H₂O+ + Ind- AH=-2 kJ/mol Assume that HInd is red in color and Ind- is blue in color. b) If a solution is purple (equal concentrations of the two species), what color will the solution turn when some NaOH or other strong base is added to the solution? Explain in terms of the Le Chatelier's principle. b) If a solution is purple (equal concentrations of the two species), what color will the solution turn when the system is cooled in an ice bath? Explain in terms of the Le Chatelier's principle.

Chemistry by OpenStax (2015-05-04)
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter14: Acid-base Equilibria
Section: Chapter Questions
Problem 47E: Explain why equilibrium calculations are not necessary to determine ionic concentrations in...
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2. Indicators are typically weak acids and the equilibrium can be described as follows: HInd+ H₂O H₂O+ + Ind- AH-2 kJ/mol Assume that HInd is red in color and Ind- is blue in color. b) If a solution is purple (equal concentrations of the two species), what color will the solution turn when some NaOH or other strong base is added to the solution? Explain in terms of the Le Chatelier's principle. b) If a solution is purple (equal concentrations of the two species), what color will the solution turn when the system is cooled in an ice bath? Explain in terms of the Le Chatelier's principle.
Transcribed Image Text:2. Indicators are typically weak acids and the equilibrium can be described as follows: HInd+ H₂O H₂O+ + Ind- AH-2 kJ/mol Assume that HInd is red in color and Ind- is blue in color. b) If a solution is purple (equal concentrations of the two species), what color will the solution turn when some NaOH or other strong base is added to the solution? Explain in terms of the Le Chatelier's principle. b) If a solution is purple (equal concentrations of the two species), what color will the solution turn when the system is cooled in an ice bath? Explain in terms of the Le Chatelier's principle.
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