Inorganic Exp 4

Inorganic Exp 4 - Experiment #4 Extraction of Aqueous...

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Experiment #4 Extraction of Aqueous Iodine with Mineral Oil Chem 1312 Section: D1 Date Performed: February 8, 2006 Date Due: February 15, 2006 Submission Date: February 15, 2006
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Objective/Introduction: Extraction is the process of transferring a solute from one solvent to another. The purpose of this experiment is to see which of four processes of extraction is the most efficient using an immiscible solvent, like oil or water. In this experiment, we use different protocols to transfer iodine from water to mineral oil. We determined which of the three procedures (or successive mixing and extractions) was the most effective at removing the iodine from the water, and thus learning the proper techniques of extraction. It was also necessary to measure the masses of iodine and potassium iodide correctly to obtain their subsequent solution. Procedures: Equipment: Reagents: 25-mL Graduated cylinders KI(s), potassium iodide 100-mL graduated cylinders Mineral oil Magnetic stirrer I 2 (s), iodine Stir Plate Spectrophotometers Spectrophotometer cells Stirring rod Pipet The procedures for this lab can be found on page 37 of Laboratory Experiments for General Chemistry
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Inorganic Exp 4 - Experiment #4 Extraction of Aqueous...

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