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3 cards from this section. Quick, good the night before a test.
What is an acid-base indicator?
Think about what it indicates during a titration.
What are two common acid-base indicators?
Consider the indicators we discussed in class.
What does an acid-base indicator do?
Consider the pH range of the indicator.
True or False: The Henderson-Hasselbalch equation can be applied to determine the pKᵢₙ of an indicator.
Think about how this equation connects to our discussions.
During a titration of acetic acid with sodium hydroxide, you observe no color change with phenolphthalein. Why might this be problematic?
Consider whether the equivalence point is reached before phenolphthalein's transition.
A student is comparing the pH transition ranges of methyl orange and phenolphthalein. Which indicator would be more suitable for a titration with a pH range of 3 to 4, and why?
Examine where each indicator operates effectively.
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