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Indigestion Tablet

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Introduction

Chemistry Lab Report The Best Indigestion Tablet To: Miss Lina Subeh By: Dara Masri Abstract: In this experiment, we are to find which antacid (indigestion tablet), Rennie or Novagel, is the most effective. This is done using titration method using a burette filled with Sodium Hydroxide, in order to measure the amount used to neutralize or lower the pH of the tablet powder mixed with Hydrochloric Acid. This will be indicated by a change in color using Methyl Orange Indicator after adding Sodium Hydroxide. The more the amount of Sodium Hydroxide used, the more it will show that the type of that indigestion tablet is not effective, because we will conclude that the Hydrochloric Acid was not neutralized or the pH of it was lowered, so more Sodium Hydroxide was needed to do that. After doing this experiment, we found out that Rennie needed less Sodium Hydroxide to neutralize its acidity than Novagel, and that meant that Rennie is more effective than Novagel. Key Words: Indigestion Rennie Novagel Sodium Hydroxide Methyl Orange Indicator Titration Experiment Table of Contents: Abstract ............................................................................... 2 Aim ...................................................................................... 4 Hypothesis ............................................................................ 4 Literature Review.................................................................... 4 Apparatus ............................................................................. 6 Procedure ............................................................................. 6 Results ................................................................................... 7 Discussion .............................................................................. 8 Conclusion ............................................................................ 9 Bibliography .......................................................................... 9 Aim: To use titration technique to test the ability or effect of two indigestion tablets (Rennie and Novagel) ...read more.

Middle

Bases have a pH range from 17 to 14.Bases are also called alkalis. How does an antacid work? When heart burn occurs and an antacid is taken, the carbonate molecules in the antacid reduce the amount of hydrogen present in the stomach juice, in other words it neutralizes the acid and reduces its pH. To test if an antacid works effectively or not, a simple test is done in the lab. Macroscale titration with burette procedure is a test that can show how strong or how effective an indigestion tablet is. First, the brands of the indigestion tablets are grinded with a, each powder is put in a different flask and labeled. 100mL of Hydrochloric Acid is added to the first powder and stirred while heated over a burner for 1-2 minutes till gently boiled. Turning off the burner, the solution is filtered in another clean flask. Two drops of phenolphthalein is added. Using a burette the solution is titrated with NaOH till endpoint. Record the exact amount of NaOH that is added to the flask. The solution will change Color indicating that is has been neutralized. This procedure is repeated for each brand, the lower the amount of NaOH used to neutralize the solution the more effective the tablet was when it lowered the pH of the acid Hydrochloric Acid. ...read more.

Conclusion

So both these tablets in my opinion are good to lower the acidity of the stomach. In the experiment we used Methyl Orange Indicator to check the if the acidity is neutralized, and we know that methyl orange indicator when added to an acid will have a color of pink/red and when a base is added the color changes to orange, so as we can see all experiments using Novagel, Rennie and hydrochloric acid changed color from red/pink to yellow/orange. Conclusion: From this experiment we concluded that Rennie was better than Novagel as Novagel used more Sodium Hydroxide than Rennie but the difference between the two amounts of Sodium Hydroxide used for those two antacids were not very high. This experiment also proved my hypothesis wrong where my hypothesis was based on my literature review, so in other words the sources I have brought the information from for my literature review might probably be wrong, as it said that antacids containing mixtures of Aluminium and Magnesium increase the pH of an acid while antacids containing Sodium and Calcium increase the pH but at the same time they activate further secretion of acids. If I wanted to repeat this experiment, I should make sure that during breaking or grinding the tablets no powder or parts of the tablets are lost, also washing and drying the apparatus used properly during use as little water maybe left in them. ...read more.

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