This project investigates how various antacids neutralize stomach acid. By testing and measuring pH changes, you will determine which antacid works best.
If different antacids are tested, then the one with the highest neutralizing capacity will show the greatest pH increase.
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Measure 100 ml of hydrochloric acid solution into each beaker.
Crush one antacid tablet and add it to the first beaker.
Stir the mixture and wait for the reaction to complete.
Use pH test strips to measure the pH level.
Repeat steps 2-4 for each antacid brand.
Record the pH levels after each reaction.
Compare the pH results to determine which antacid was the most effective.
Clean up the workspace following the experiment.
The antacid that raises the pH level the most will be identified as the most effective in neutralizing acid. Expect varying results among the different brands.
Type of antacid
Change in pH level
Volume of acid solution, Concentration of acid, Temperature during the reaction
Handle hydrochloric acid with care and wear gloves and goggles during the experiment.
Include a graph of pH changes.
Create a comparison chart of antacid effectiveness.
Discuss the importance of antacid use for health.
Demonstrate the experimental setup.
