Gravimetric Titrations are More Accurate, More Precise, and Easier than Volumetric Titrations

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Authors
Lynn, M. Christina
Advisor
Kyle Strode
Joan Stottlemyer
Ron Wilde
Editor
Date of Issue
2010-04-01
Subject Keywords
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Citation
Series/Report No.
item.page.identifier
Title
Gravimetric Titrations are More Accurate, More Precise, and Easier than Volumetric Titrations
Other Titles
Type
thesis
Description
Abstract
Gravimetric titrations were compared statistically in this study with volumetric titrations. A sodium hydroxide solution was standardized with pure potassium hydrogen phthalate (KHP). This solution was then used to analyze an impure sample of KHP with a known concentration. The procedure was conducted by the gravimetric and volumetric titration methods. The calculated results ofeach titration method were statistically compared to determine which method was more accurate and/or precise. In addition, the uncertainties present with each method, including buret delivery precision and weighing precision were evaluated. Last, the two techniques were performed by an entire class ofupperdivision analytical chemistry students, and the results were analyzed for accuracy and precision. The findings illustrated that gravimetric titrations were more accurate, precise and much easier to use compared to volumetric titrations.
Sponsors
Degree Awarded
Bachelor's
Semester
Spring
Department
Chemistry & Physics