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Determine the percent aspirin in an aspirin tablet and to compare this with the amount specified on the label.

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  • Essay length: 2298 words
  • Submitted: 22/12/2003
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GCSE Aqueous Chemistry

The first 200 words of this essay...

Titrimetric Analysis of Aspirin

Name: Andrew Holmes

Student Number: 2103086

Course: BSc Forensic Science

Year: 1

Unit: Introduction to Forensic Chemistry

Date: 18/03/02

Summary

The purpose of the experiment was to determine the percentage of acetyl salicylic acid in an aspirin tablet and to compare this with the amount specified on the label. The average weight of one tablet before titration was found to be 328 mg. The amount of aspirin calculated from the results obtained from titrimetric analysis to be 317 mg. The stated dose of the tablets was 300 mg The percent purity of an aspirin tablet to the amount specified on the label was then calculated to be 96.47 % pure.

Aims and Objectives

Objectives

The objectives of this experiment are to determine the percent aspirin in an aspirin tablet and to compare this with the amount specified on the label. This is carried out using an acid - base titration.

Aims

The aims of the experiment were as follows:

* Calculate the weight of one aspirin tablet.

* Calculate the molarity of diluted and stock NaOH solutions.

*

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