character: Laboratory Technician
topic: Measuring pH Levels
grade: 11
subject: Chemistry
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character: Chemistry Teacher
topic: Laboratory Experiments in Acid-Base Chemistry
grade: 11
subject: Chemistry
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character: Science Student
topic: Importance of pH in Biological Systems
grade: 11
subject: Chemistry
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character: Environmental Scientist
topic: pH Measurement in Water Quality Testing
grade: 11
subject: Chemistry
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