Lab 1 - Calibration of Volumetric Glassware - Lab 1...

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Lab 1: Calibration of Volumetric GlasswareBy: Grace Collins, 325740123/11/15Purpose: To practice the preparation of volumetric glassware in order to accurately conduct analytical chemical analyses, and to become familiar with the three general approaches that are often used; Direct absolute calibration, indirect absolute calibration, and relative calibration. A minor objective of the lab was to learn how to properly clean and operate burettes and pipettes.Procedure: The experiment was carried out as outlined in Experiment 1 of the Chemistry 311 Laboratory Manual, pp. 55-59. Note that practice with a 10mL pipette and distilled water was conducted prior to the start of the experiment. Otherwise nochanges or modifications were made. Observations: Calibrating a Burette and a Pipette Due to the fact that this procedure was conducted using only distilled water, there were no distinct observations to be made. Results: Temperature = 23.6°CDensity = 0.9975415 g/mLInitialBurettereading(mL) FinalBurettereading(mL)Appare-ntVolume(mL)Mass offlask(g)Mass offlaskpluswater(g)Waterdispens-ed (g)Correct-edmass(g)Actualvolume(mL)0.00mL10.01mL10.01mL99.95g109.889.93g9.94g

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