2) When acid is added to a color indicator, it changes from purple to pure blue at a pH = 5.75. When base is added, It changes from purple to pure red at a pH =7.75. Calculate the Ka of the indicator.

2) When acid is added to a color indicator, it changes from purple to pure blue at a pH = 5.75. When base is added, It changes from purple to pure red at a pH =7.75. Calculate the Ka of the indicator.

Living By Chemistry: First Edition Textbook

1st Edition

ISBN:9781559539418

Author:Angelica Stacy

Publisher:Angelica Stacy

ChapterU6: Showtime: Reversible Reactions And Chemical Equilibrium

SectionU6.7: How Colorful: Applying Le Chatelier's Principle

Problem 2E

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Concept explainers

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

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Hello, can you please solve this problem, thank you. Also, please show all your work

When acid is added to a color indicator, it changes from purple to pure blue at a pH =
2)
5.75. When base is added, It changes from purple to pure red at a pH =7.75. Calculate the
Ka of the indicator.

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