CHEM 1&2 Lab Manual & worksheets pg 170

CHEM 1&2 Lab Manual & worksheets pg 170 -...

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Experiment 16: Colligative Properties General Chemistry I and II Lab Manual Dakota State University page 170 of 232 (1) sodium chloride (an ionic compound); the tip of a spatula full (about 0.1 g) (2) calcium phosphate (CAUTION! Toxic) (an ionic compound); the tip of a spatula full (about 0.1 g) (3) table sugar (sucrose, a polar covalent compound); the tip of a spatula full (about 0.1 g) (4) Naphthalene (CAUTION! Toxic, flammable, toxic fumes) (typical ingredient of urinal cakes; a non-polar covalent compound); the tip of a spatula full (about 0.1 g) (5) Ethylene glycol (CAUTION! Toxic) (typical ingredient in antifreeze; a polar covalent liquid); about 3 drops (enough to see) (6) Paraffin Oil (CAUTION! Toxic, flammable) (a non-polar covalent liquid); about 3 drops (enough to see) Agitate each solution by flicking the test tube. Describe what happens in each. Effect of Temperature on Solubility: Using a clean beaker, begin heating about 50 mL of distilled H 2 O. Place each of the following into three medium sized test tubes:
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