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Analysis Of Aspirin Tablets

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Introduction

Vikesh kakad Analysis Of Aspirin Tablets Research Question The constraint given to us by the teacher was that, we had to determine, which from the three brands of Aspirin given represents the best value for money and worth purchasing? , Using a standard solution of Sodium Hydroxide (NaOH). C6H5(OCOCH3)COOH + NaOH --> C6H5(OCOCH3)COO Na + H2O . (aq) (aq) (aq) (l) Hypothesis Aspirin drug is the most common medicine that is taken by people, from its history salicylic acid was used as a medium of painkiller and fever depressant. Because of it being strong, salicylic acid can damage the oesophagus and stomach membranes. As time passed the compound was modified and making it safer to intake thus making it more effective. Which is what we now call as Aspirin. The effectiveness of this tablet may depend on the mass of the tablet; this is because the tablet with more mass will have more the amount of Aspirin (C9 H8 O4) ...read more.

Middle

- 3 different Brands of Tablets - Phenolphthalein Indicator Procedure - Choose a brand of tablet, note the brand and price per tablet and weight it. - Crush tablet using motor and pestle and rinse the power using distilled water in a conical flask - Add more distilled water until approximately 25 cubic cm. - Warm the solution, so as the tablet dissolves faster. - Add 3-4 drops of phenolphthalein indicator. - Titrate the Aspirin solution with 0.05mol per dm cube of NaOH - And record the reading - Repeat with another brand of tablet . Data collection The result were obtained as follows, Tablets Mass of tablet weighed in grams (� 0.05 g) Concentration of NaOH in mol per dm cube Volume of NaOH used in the burette. (� 0.05 cm3) Volume of NaOH Titered in with Aspirin .sol (� 0.005 cm3) ...read more.

Conclusion

and using all the information we had to calculate the percentage purity that would determine which Aspirin tablet represent the best value for money. However I discovered that the result I got resembled with my partner and other students as well, therefore I was convinced that I was on the right track. Improvements: 1: We could have performed few more tests with different amount of Aspirin tablets. However time was limited and we settled with a sensible result. 2: We could have made our work a bit fast so we could make further testing even though we had enough results we needed. Manipulating skills: We were carefully following every instruction given by the teacher on a piece of paper. We used the materials need in an amount that was needed and not wasting them by taking large amounts. And finish our experiment successfully with sensible results that would help us understand with out any damage . ...read more.

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