lab1045_exp7 - Experiment 7: Conservation of Copper...

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Experiment 7: Conservation of Copper Chemistry 1045L- Purpose: The purpose of this lab is to demonstrate the law of conservation of mass. It shows that mass is never created or destroyed simply converted to one form to another or to energy. This lab helps us understand how and why chemical equations are balanced. This lab also is used to reiterate the basic measuring and weighing techniques. Procedure: The procedure was followed directly from this link: http://www.chem.fsu.edu/chemlab/chm1045lmanual/conserve/procedure.html . The only deviation was a 50 mL side-arm flask was used instead of a 250 mL flask. Data: Before the reaction Object Mass 50 mL Side-arm Flask 62.4423 g 4 Pieces of Solid Zn Metal on Kimwipe 2.3272 g Kimwipe 0.3960 g 50 mL Side-arm Flask with 92.9370 g 30.4947 g Zn Metal 1.9312 g Total Mass 32.4259 g After the reaction Object Mass Metal Pieces on Kimwipe 2.8582 g
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50 mL Side-arm Flask with 87.0465 g 24.0642 g Metal Pieces 2.4622 g Total Mass 26.5469 g H Gas .02048 g
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This note was uploaded on 03/16/2012 for the course CHEMISTRY 1045L taught by Professor Alexisbaxter during the Spring '11 term at FSU.

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lab1045_exp7 - Experiment 7: Conservation of Copper...

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