Burn Baby Burn. Antacids: Do They Work?

Overview

Objectives/Goals To determine how well different antacids work in liquids. HYPOTHESIS: All antacids perform the same in liquids. Methods/Materials The experiment was carried out by measuring, testing, and recording pH* levels in the test liquids. After crushing the two antacid tablets (the recommended dose) into a powder, it was poured into each liquid and stirred thoroughly. A pH strip was inserted at 0, 1, 15, and 30 minutes. Once these tests were completed, the results were recorded and graphed. Results Liquid pH pH Rolaids Brand Target Generic Brand 0 min 1 min 15 min 30 min 0 min 1 min 15 min 30 min Water (Folsom Tap) 6.0 7.0 8.0 10.0 6.0 7.0 7.0 8.0 0 min 1 min 15 min 30 min 0 min 1 min 15 min 30 min Milk (1%) 7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0 0 min 1 min 15 min 30 min 0 min 1 min 15 min 30 min Apple Juice (Tropicana Light) 3.0 6.0 6.0 7.0 3.0 5.0 6.0 7.0 0 min 1 min 15 min 30 min 0 min 1 min 15 min 30 min Orange Juice (Tropicana Calcium Enriched) 4.0 4.5 5.0 6.0 4.0 4.0 4.5 5.0 0 min 1 min 15 min 30 min 0 min 1 min 15 min 30 min Lemon Juice (Realemon) 2.0 3.0 4.0 4.0 2.0 3.0 3.0 3.0 0 min 1 min 15 min 30 min 0 min 1 min 15 min 30 min Cola (Coke Regular Classic) 2.0 6.0 7.0 7.0 2.0 6.0 6.0 6.0 0 min 1 min 15 min 30 min 0 min 1 min 15 min 30 min Vinegar (Heinz) 2.0 5.0 5.0 4.5 2.0 4.0 4.0 4.0 Conclusions/Discussion The data collected from the experiment showed that the name brand antacid, Rolaids, worked better at neutralizing the acid in the liquids than the generic brand. Coloring of the antacid tablets affected the color of the liquid, but not the effectiveness. Coca Cola and vinegar seemed to fizz and froth the most once the antacid was added, but was more substantial with the Rolaids. The Target brand did very little to change the pH in many of the test liquids. In many cases, the Target brand did not dissolve well and

Competition history

• CSEF 2005 Materials Science (Junior Division Only) · Entry J1126

Resources

• CSEF project summary ↗

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