Analysis of Aspirin Tablets

Purpose of analysis of aspirin tablets - the proportion of acetylsalicylic acid contained in the sample of aspirin tablets. -------------------------------------------------------------------- --------------- To do this, the molar amount of reaction with sodium hydroxide must be known. This is done using the back titration method. Of these, the sodium hydroxide solution and the number of moles of the aspirin reaction were measured by a titration method and compared with the molar amount of aspirin not added.

It is an interesting fact that if you purchased generic aspirin tablets, they are far cheaper than the brand's aspirin pack. Analysis shows that they usually contain the same amount of aspirin (usually 300 mg per tablet), but because the brand tablets contain other ingredients, the content of aspirin decreases by mass percentage I will. This utility allows students to determine the proportion of aspirin among the various brands of local aspirin tablets. Then they can calculate the cost per gram of aspirin. Do not use soluble aspirin tablets in order to obtain the best results, as other ingredients may interfere with the color change of the indicator.

The purpose of this experiment was to determine the proportion of aspirin in aspirin tablets. The results will allow me to calculate the amount of aspirin present in each tablet and compare it with the amount of aspirin listed in the box. When you complete this analysis using back-titration you can compare backtitration accuracy with acid-base titration and colorimetric analysis. Backward titration was not done with solutions (analytes) requiring known concentrations, but rather experienced a method similar to positive titration, except that excess reactants remained after completion. Reaction with specimen

In this experiment, the weight of acetylsalicylic acid (aspirin) in aspirin tablets was determined by back titration. By titrating NaOH (leased after NaOH and acetylsalicylic acid) and H 2 SO 4 the amount of NaOH required to react with all the acetylsalicylic acid present in the aspirin tablet can be ascertained .