character: Mrs. Johnson
topic: pH Calculation in Buffer Solutions
grade: 12
subject: Chemistry
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character: Mr. Smith
topic: Understanding Acid-Base Reactions
grade: 12
subject: Chemistry
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character: Dr. Lee
topic: Buffer Solutions and their Applications
grade: 12
subject: Chemistry
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character: Ms. Patel
topic: Calculating pH in Various Solutions
grade: 12
subject: Chemistry
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