ChemQuest® AP® Chemistry Lab #12: Designing an Effective Hand Warmer

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Product Number: SB52629

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Grades 10-12.

Study the various energy changes that occur with the formations of solutions for laboratory salts, then create the best and safest hand warmer. Determine the heat of solutions for each solid and analyze the cost and safety information with provided safety data sheet. Meets Big Idea 5, Investigation 12, and Primary Learning Objective 5.7.

Kit includes:

  • 100 g calcium chloride
  • 100 g sodium carbonate
  • 100 g lithium chloride
  • 100 g sodium acetate
  • 100 g ammonium nitrate
  • 100 g sodium chloride
  • 200 g magnesium sulfate

Materials needed but not supplied:

  • Distilled or deionized water
  • Balance, 0.01 g precision
  • 100 ml graduated cylinder
  • Magnetic stir plates/stir bars
  • 8-oz. polystyrene cups with lids
  • Thermometer or temperature probes

Item Weight: 3.50
Age: 15 yrs. - 18 yrs.
Subject Areas: Chemistry
Assembly Required: false
Grade: 10 - 12
School Type: High School
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