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Chemistry Lab Pre-Lab Procedure Experiment # 2

Chemistry Lab Pre-Lab Procedure Experiment # 2 -...

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Experiment #2 Chemistry 153-39 A. Determining a Liquid’s Solubility in Water i. If two liquids do not separate upon standing they are soluble. ii. If two liquids do separate upon standing they are insoluble. 1. Oil and Water form a “Visible boundary” separating the layers. b. Method i. Place 1ml (about 20 drops) in the unknown liquids test tube. ii. Add “equal volume” of water to liquid iii. Seal the test tube with a small cork or plastic seal iv. Shake the test tube for 15 seconds v. Set test tube aside for 1 min. vi. Check and see if the two liquids separated vii. Record Observations B. Determining the Density of a Liquid i. Density is measure in grams per milliliter 1. Measure the density of the unknown liquid of 5.00mL of liquid. 2. The 10.0mL will be measured with a volumetric pipet. 3. Place liquid to be measured in a small beaker (More liquid than measuring) 4. Hold pipet vertically and use pipet bulb, several centimeters above the etched line 5.
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