ChemQuest® AP® Chemistry Lab #3 - What Makes Water Hard?

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Product Number: SB52620

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$33.95

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Allow students to get the most out of their AP® Chemistry class with this college-level lab designed to challenge the more advanced student. Students will explore key concepts while preparing for higher education. Activity contains enough materials for 15 lab groups as well as a teacher’s guide and student study guide copy-masters.
Students will investigate the suitability of gravimetric analysis for determining the amount of water hardness in the form of calcium carbonate found in various water samples. Meets Big Idea 1, Investigation 3, and Primary Learning Objective 1.19.

Kit includes:

  • 40 g calcium chloride
  • 50 g sodium carbonate
  • 500 ml sodium carbonate, 0.5M
  • 100 pieces of filter paper, 2
  • 200 ml calcium chloride, 0.75M
  • 200 ml calcium chloride, 0.2M
  • 200 ml calcium chloride, 0.5M
  • 200 ml calcium chloride, 0.1M
  • 200 ml calcium chloride, 0.05M
  • 200 ml calcium chloride, 0.9M

Materials needed but not supplied:

  • 100 ml and 250 ml beakers
  • 100 ml graduated cylinders
  • Watch glasses
  • Distilled or deionized water
  • Wash bottles
  • Analytical balance, 0.001 g resolution
  • Drying oven
  • Aspirators or small vacuum pumps
  • 250 ml Buchner funnels
  • 250 ml Erlenmeyer flasks with sidearm
  • Ring stands with laboratory clamps
  • Rubber and glass tubing
  • Two-hole rubber stoppers, #6
  • Buchner funnel rubber stoppers, #6

Item Weight  :       6.50
Prop 65  :      
 

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