character: Ms. Emily Chen
topic: Molar Mass and Its Role in Chemical Calculations
grade: 12
subject: Chemistry
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character: Mr. David Smith
topic: Understanding Molarity and Solutions in Chemistry
grade: 12
subject: Chemistry
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character: Dr. Sarah Johnson
topic: Stoichiometry: The Art of Chemical Equations
grade: 12
subject: Chemistry
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character: Ms. Laura Williams
topic: Calculating Molecular Weight in Organic Chemistry
grade: 12
subject: Chemistry
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