Lab report 7

Lab report 7 - An Acid-Base Titration: Determining...

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An Acid-Base Titration: Determining Molecular Weight (Lab #7) Jesse LaSalle TA: Jimmy Martin Experiment Completed: November 1, 2007 Report Submitted: November 8, 2007
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I) Purpose : Learning to standardize a basic solution, and how to use that solution to determine the molecular weight of an unknown acid. II) Procedure : Casey, J. and R. Tatz (2008). An Acid-Base Titration: Determining Molecular Weight. . General Chemistry Laboratory Experiments , Hayden McNeil. Vol.1: 65-72. III) Data : (See attached report form.) IV) Calculations : (See attached calculation sheet.) V) Error analysis/Conclusion: This laboratory experiment’s procedure had a number of possible sources of error. Any measurement recorded in any part of the experiment could have been misread because of human error. For the titration, I had a very difficult time cleaning the buret, and there is a possibility of the device not being completely clean before use. Any contamination could cause an inaccurate result while titrating. I had to restart several titrations, as I had overshot the faint pink color that
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This lab report was uploaded on 02/25/2008 for the course CHEM 121 taught by Professor Wyzlouzil during the Fall '07 term at Ohio State.

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Lab report 7 - An Acid-Base Titration: Determining...

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