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
- 30
- Number of groups
- Maximum 8 groups per period
To complete this kit requires one ~50-minute class period.
