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Understanding and Comparing Antacids

kit #181

This LAB-AID makes science more interesting and meaningful by dealing with fundamental chemical principles and applying them to products found at home. Most antacids are composed of bases or alkalizing agents. Students use an over-the-counter antacid (e.g. Rolaids, Tums, etc.) brought from home and perform a neutralizing activity to determine how much acid can be neutralized by a particular brand. After conducting the activities, students make comparisons and draw conclusions about the different brands tested. This kit is complete for 30 students. Note: This kit does not contain antacids; they must be supplied.


  • Relate science to the real world by reinforcement and application
  • Perform a neutralizing activity and quantitize it
  • Infer which brands of antacids are most effective
  • Determine cost-benefits of various brands

Content List in Understanding and Comparing Antacids is as follows:

Quantity Description
1 Teacher’s Guide with MSDS
30 Student Worksheets and Guides
8 Chemplates®
8 Rubber tubes
1 Vial of universal pH indicator strips
24 Calibrated tubes with caps
1 Drop control bottle of Phenolphthalein solution 15ml
8 Drop control bottles of 0.1M Sodium Hydroxide 30ml
4 Drop control bottles of 0.1M Hydrochloric Acid (fill is 100 ml), 180ml
2 60mL bottles of 0.5M Hydrochloric Acid
2 60 mL bottles of 0.5M Sodium Hydroxide
2 60 mL bottles of Limewater
Number of students
Number of groups
Maximum 8 groups per period

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

Title Item # Price Quantity
Understanding and Comparing Antacids 181 $175.05
Understanding and Comparing Antacids REFRESH-A-KIT 181-RC $92.65