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INSTRUCTOR:
PURPOSE/INTRODUCTION
The purpose of this experiment is to examine the properties of six common chemicals based upon their inherent molecular properties. Though this experiment, we can study and compare the bond properties of these chemicals.
This experiment is also an introduction comparison of ionic and covalent bonding through real world testing. The properties of each type of bond will be exploited to the fullest during these tests.
MATERIALS
Materials required complete the lab: * 6 Watch Glasses * 2 g Calcium Chloride per parts A, B, C * 2 g Citric Acid per parts A, B, C * 2 g Phenyl Salicylate per parts A, B, C * 2 g Potassium Iodide per parts A, B, C * 2 g Sodium Chloride per parts A, B, C * 2 g Sucrose per parts A, B, C * 6 Bunsen Burners * 6 Test Tubes with 25 ml Ethanol each * 6 Test Tubes with 25 ml Water each * 6 100 ml beakers with 50 ml Water each * 10 g Calcium Chloride per parts D * 10 g Citric Acid per parts D * 10 g Phenyl Salicylate per parts D * 10 g Potassium Iodide per parts D * 10 g Sodium Chloride per parts D * 10 g Sucrose per parts D * 6 Conductivity Meters
METHOD * Set up six watch glasses * Add 2 g of each chemical to its own watch glass * Set 1 Bunsen burner under each watch glass and observe the speed of the melting point.
(Limit 2 minutes) * Record the order of the chemicals as they reach their melting point * Clean up the work area * Set up six Test tubes with 25 ml of ethanol * Add 2 g of each chemical to its own Test tube * Stir the mixture * Record if the chemicals dissolve in the ethanol or not * Clean up the work area * Set up six Test tubes with 25 ml of Water * Add 2 g of each chemical to its own Test tube * Stir the mixture * Record if the chemicals dissolve in the water or not * Clean up the work area * Set up six 100 ml beakers with 50 ml of Water