Practice Common Indicators And Their Ranges (2.5.2)

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6 sample questions

Question 1.
What color does Methyl Red turn in basic solutions?
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Think about its pH range.
Question 2.
What is the range of Bromothymol Blue?
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Remember the transition from yellow to blue.
3Question 3.
What color does Phenolphthalein turn at a basic pH?
- Colorless
- Yellow
- Pink
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Consider how it appears in acidic conditions.
4Question 4.
True or False: Methyl Red changes from yellow in acidic solutions.
- True
- False
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Think about the color transitions.
Question 5.
You are conducting a titration with a weak acid and a strong base. Which indicators would be more appropriate: Methyl Red, Phenolphthalein, or Bromothymol Blue?
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Consider the equivalence point pH of the titration.
Question 6.
If you have a solution that is expected to reach pH 5.5 at the equivalence point, which would be the best choice of indicator?
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Look for the indicator that covers pH intervals around 5.5.

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