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Determination of Chemical Formulas

kit #85

Relating chemical formulas to actual substances can often be a confusing and difficult challenge for students. In this Applied Science Concepts Kit, abstract theories are made concrete, as students learn to predict the formula of a compound based on the compound's reaction to different solutions. Students use a chemical analysis method to determine percent composition and molecular weight of a molecular substance. For ionic substances, students will determine the relative number of each of the ions in substance’s composition. This lab is complete for 50 students. The methods used in this kit for determining chemical formulas are also used in the Families of Elements Experiment Kit, LAB-AIDS® No. 110R.


  • Predict the various formulas of compounds formed by their reactions
  • Turn abstract theory into realism
  • Gain and understanding of percentage composition and molecular weight

Content List in Determination of Chemical Formulas is as follows:

Quantity Description
1 Teacher’s Guide with MSDS
50 Student Worksheets and Guides
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
Number of students
Number of groups
Maximum 12 groups per period

To complete this kit requires one ~50-minute class period.

Title Item # Price Quantity
Determination of Chemical Formulas 85 $91.55
Determination of Chemical Formulas BILINGUAL ENG/SP 85-BL $93.75
Determination of Chemical Formulas REFRESH-A-KIT 85-RC $49.75