Lab 6 - Ocean County College Department of Chemistry LAB 6:...

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Ocean County College Department of Chemistry Submitted by Date Submitted: 12 MAR 2010 Date Performed: 10 MAR 2010 Lab Section: DL2 Course Instructor: Professor Maria Tamburro Purpose: Ocean County College 1 General Chemistry I DL2 Chemistry Department
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Is to investigate the chemical properties of pure chemical substances, and to  investigate the physical properties of pure chemical substances. Chemical  properties describe the tendencies of a substance to undergo chemical change.  Physical properties commonly used to characterize pure substances are: color,  melting point, odor, boiling point, hardness, density, and solubility. The  observation of physical change does not involve chemical change in the  substance. Each new product formed as a result of chemical change has its own  set of characteristic chemical and physical properties. We will follow the  procedures to properly identify chemical and physical changes in 7 substances.  Procedure: I began the experiment by acquiring all necessary materials that I needed to  provide (toothepicks and matches), and then sifting through my ChemKit to find  the provided materials. I will next create a table necessary for recording the  chemical and physical changes of the following chemicals: Mg, Cu, Zn, MgO,  CuC03, Cu(No3)2, NaCl. I will then fill up two pipets, one with HCI and one with  NaOH. I will set these aside for later use. I will perform the following steps on  each of the substances listed above. Place small amounts of one substance into  4 test tubes (each substance done individually) and place them in the 24 well  plate. Examine the color and odor. Next light the burner, move one of the test  tubes over the flame and observe the effect of heat. Allow the test tube to cool  before storing in the well so as not to melt it. Second, add enough water to the 
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Lab 6 - Ocean County College Department of Chemistry LAB 6:...

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