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Determination of Chemical Formulas

Kit #85

With this activity, students learn to predict the formula of a compound by comparing the amount of the compound produced when combining different ratios of reactant solutions. Students use a chemical analysis method to determine the ratio of each of the ions in the product substance’s composition. Knowing the ratio, students can determine the chemical formula.

Details at a Glance

  • 1-2 Days | 1-2 ~50 minute class periods
  • 1 Activity
  • Accommodates 4 classes, each with 12 groups of 3 students
  • Consumables service 144 students
  • Includes digital resources

Complete Kit Equipment Package

Determination of Chemical Formulas

Need to Extend Your Kit Materials?

Scientific Concepts

•Compare the results of chemical reactions.
•Predict formulas of chemical compounds.
•Gain an understanding of percentage composition.
KEY VOCABULARY: chemical formula, precipitate, extended structure, product,
molecule, reactant

Guides & Student Sheets

Our kits and modules provide you with everything you need so you can open, review, and teach the material confidently the next day.

  • Full downloadable Teacher Guide with background information, detailed instruction, example data and answers
  • Downloadable Student Sheets with age appropriate background information, full procedure(s), and analysis questions
  • All materials necessary to carry out the investigation
  • Safety Data Sheets

Kit Components

  • 12 Chemplates®, Lab-Aids®
  • 6 Lead nitrate solution, Drop control bottle
  • 3 Sodium oxalate solution, Drop control bottle
  • 3 Potassium iodide solution, Drop control bottle
  • 50 Student Worksheets and Guides
  • 1 Teacher’s Guide with MSDS
  • Not included and needed for instruction: Eyewear.

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