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Lab-Aids: Identification of Substances Kit - STEMfinity
  • SKU: LAB-83

Lab-Aids: Identification of Substances Kit

$174.99

Lab-Aids: Identification of Substances Kit


Specific positive and negative ions are often used to identify inorganic substances. In this kit, students are asked to identify common metallic and non-metallic ions in zinc, cadmium, antimony, barium, sulfate, sulfide, sulfite, and carbonate. Through the identification process, students learn that each substance has distinctive properties. As a closing activity, students conduct chemical tests on four unknown substances. All test results are safe, clear, colorful, and unmistakable! Since one kit provides supplies for twelve students working individually, LAB-AIDS‚® recommends ordering additional kits.

The Identification of Substances Kit is an excellent complement to the Identification of Chemical Reactions Kit (LAB-84).
 
Scientific Concepts:
  • A thorough introduction to acid and bases
  • Produce hydrogen by reacting acids with metals
  • Collect and safely test hydrogen
  • Produce carbon dioxide by reacting carbonates with acids
  • Collect and test carbon dioxide
  • Observe effects of acids and bases on indicator dyes
  • Measure concentration of acids by titration of an "unknown"
  • Perform a neutralization experiment

Content List:
  • 1 Teacher's Guide with MSDS
  • 50 Student Worksheets and Guides
  • 12 Chemplates with spatulas and gas collector caps, LAB-AIDS‚®
  • 12 Gas delivery tubes
  • 1 Absorbent paper, Package
  • 1 Calcium carbonate chips, Vial
  • 1 Unknown #1, Vial
  • 1 Unknown #2, Vial
  • 1 Unknown #3, Vial
  • 1 Unknown #4, Vial
  • 1 Barium Chloride Solution, Drop control bottle
  • 1 Antimony Chloride Solution, Drop control bottle
  • 1 Cadmium Nitrate Solution, Drop control bottle
  • 1 Lead Acetate Solution, Drop control bottle
  • 1 Potassium Permanganate Solution, Drop control bottle
  • 1 Sodium Sulfate Solution, Drop control bottle
  • 1 Sodium Sulfite Solution, Drop control bottle
  • 1 Zinc Nitrate Solution, Drop control bottle
  • 3 6M Hydrochloric Acid, Drop control bottle
  • 3 Saturated Limewater, Drop control bottle
  • 3 Sodium sulfide Solution, Drop control bottle

Classroom Planning:
  • To complete this kit requires one ~50-minute class period.
  • Number of students: 50

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