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The Percent Composition of an Aspirin Tablet

Introduction-Experiment 2: The Percent Composition of an Aspirin Tablet
Aspirin is a substance commonly found in medicine cabinets around the word. It is one of the least expensive and most useful drugs. The precursor to modern day aspirin was found in the bark of willow trees and used by people for thousands of years to alleviate pain.
Aspirin tablets (5-grams) are usually compounded of about 0.32 g of acetylsalicylic acid pressed together with a small amount of filler, which binds the ingredients and in the case of aspirin, counteracts the acidity (Verdel).
Most aspirin tablets contain small amount of binder, which helps prevent the tablets form crumbling. The binder is chemically inert and was intentionally added by the manufacturer, but its presence means that aspirin tablets do not have 100 percent purity.
In this experiment we determined the percentage of acetylsalicylic acid in an aspirin sample by means of a titrimetric analysis.
Methods-Experiment 1: Synthesis, Puri...

Posted by: Jessica Linton

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