character: Chemistry Teacher
topic: Using Litmus Paper for pH Measurement
grade: 12
subject: Chemistry
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character: Lab Assistant
topic: Performing pH Tests with Litmus Paper
grade: 12
subject: Chemistry
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character: High School Chemistry Educator
topic: Understanding Acid-Base Indicators
grade: 12
subject: Chemistry
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character: Science Teacher
topic: Practical Applications of pH Measurement in Chemistry
grade: 12
subject: Chemistry
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