5.2 - Common Indicators
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Practice Questions
Test your understanding with targeted questions
What color does litmus paper turn in acidic solutions?
💡 Hint: Think of the opposite color in bases.
Phenolphthalein is colorless in which kind of solution?
💡 Hint: Remember its color change to pink.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does litmus paper indicate?
💡 Hint: Consider its use in identifying both acidic and basic solutions.
True or False: Phenolphthalein is pink in acidic solutions.
💡 Hint: Think about its color change in various pH levels.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Analyze a scenario where a chemist uses phenolphthalein in a titration experiment. What pH range will inform them that they have reached neutrality?
💡 Hint: Recall what you know about pH levels.
You have two solutions: one is acidic with methyl orange, and the other is basic with phenolphthalein. If you mix them, what possible color changes might you observe?
💡 Hint: Consider each solution's indicator properties during mixing.
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