3.9 - Indicators
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Practice Questions
Test your understanding with targeted questions
What color does litmus paper turn in a basic solution?
💡 Hint: Think about how it reacts with bases.
What color does methyl orange turn in an acidic solution?
💡 Hint: Methyl orange changes colors between acid and base.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What color does litmus paper turn in acidic solutions?
💡 Hint: Recall the basic reaction of litmus paper.
Methyl orange turns what color in a basic environment?
💡 Hint: Think about its color change from acid to base.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Design an experiment to determine the acidity of an unknown solution using litmus paper and phenolphthalein. Describe the expected observations.
💡 Hint: Think through each indicator's response in different environments.
Explain the importance of pH indicators in environmental science.
💡 Hint: Consider the real-world applications of pH.
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