Distillation and Gas Chromatography Lab

Distillation and Gas Chromatography Lab - Kandagatla 1 Sai...

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Kandagatla 1 Sai Kandagatla Lab Section: 13 TA: Abdeen Lab Date: 9/15/2010 Due Date: 9/29/2010 Exp. 2: Dehydration of an Alcohol: Distillation and Gas Chromatography Preparation of Methylcyclohexenes Purpose: The purpose of this experiment is to dehydrate an alcohol and use distillation to isolate the product. Gas chromatography will be used in order to analyze the mixture formed by the reaction. Table of Reagents: Compound Molecular Mass Grams Moles 2-methylcyclohexanol (6 mL) 114.21 g/mol 6 mL x .954 g = 5.64 grams 1 mL 5.64 g x 1 mol = .049 mole 114.21 g 85% phosphoric acid (5 mL) 98.0 g/mol 5 mL x 2.1 g = 10.5 grams 1 mL 10.5 g x 1 mol = .107 mole 98.0 g Drying agent (Sodium Sulfate) 142.04 g/mol Ice water (ice bath) Boiling stones (2) Product Data from Literature: Product : 1-methylcyclohexene (major product) and 3-methylcyclohexene (minor product) Molecular Weight : 96.19 g/mole Molecular Formula : C 7 H 12 Boiling Points: 1-methylcyclohexene- 110 O C 3-methylcyclohexene- 104 O C Equations of Reactions: 1
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Kandagatla 2 Mechanism: Procedure: 1.
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