ChemQuest® AP® Chemistry Lab #13: Le Chatelier and the Colors of the Rainbow

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Product Number: SB52630

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Grades 10-12.

Investigate Le Chateliers principle and why it works by testing several systems at equilibrium and then selecting specific ones to produce the colors the rainbow based on specific applications of this principle. Next, select which reaction system to use for which color while trying to only use a given stress once. Meets Big Idea 6, Investigation 13, and Primary Learning Objective 6.9.

Kit includes:

  • 3 x 30 ml bromothymol blue, 0.04
  • 3 x 15 ml hydrochloric acid, 0.1N
  • 3 x 15 ml sodium hydroxide, 0.1N
  • 3 x 15 ml sodium schloride, 0.1M
  • 3 x 250 ml potassium thiocyanate, 0.1M
  • 3 x 15 ml ferric nitrate, 0.2M Fe(No3)3
  • 3 x 10 g potassium thiocyanate
  • 3 x 10 g iron (III) chloride
  • 3 x 10 g sodium phosphate tribasic
  • 3 x 15 ml potassium nitrate, 0.1M
  • 3 x 250 ml copper (II) sulfate
  • 3 x 15 ml hydrochloric acid, 1.0N
  • 3 x 15 ml ammonium hydroxide Acs, 28-30%
  • 3 x 10 g copper (II) chloride
  • 3 x 15 ml hydrochloric acid T/G, 32%
  • 3 x 10 g cobalt chloride hexahydrate
  • 3 x 250 ml ethyl alcohol R/G, 95% denatured
  • 3 x 30 ml deionized water
  • 3 x 30 ml acetone
  • 3 x 10 g sodium chloride
  • 3 x 15 ml methyl red indicator, 0.3%
  • 3 x 15 ml silver nitrate, 0.1M

Materials needed but not supplied:

  • 50 ml and 250 ml beakers
  • 10 ml and 50 ml graduated cylinders
  • Hot plate
  • Ice
  • Labeling or marking pens
  • Magnetic stir plate and stir bar
  • Test tubes with test tube holder and rack
  • Thermometer
  • 500 ml volumetric flask
  • Wash bottle

Item Weight: 14
Assembly Required: false
Subject Areas: Chemistry
Prop 65:

9597a.pdf

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6597a.pdf

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