Dehydration of an Alcohol lab report
Experiment 9-Dehydration of 2-methylcyclohexanol
Name______________________________________________________________________
Lab Partner_________________________________________________________________
Lab Day and Time____________________________________________________________
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(Typed, on time, in order, presentable, complete)
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Abstract
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Introduction
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Reaction Scheme and Curly arrow mechanism
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Table
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Experimental Procedure
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Calculation (percentage yield and composition of isolated materials)
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Results and Discussion (include GC)
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Completion/participation of the Experiment
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Comments
/50
Lab 9 Report Template: Acid Catalyzed Dehydration of 2-Methylcyclohexanol
Abstract
In Experiment 9, distillation was used to carry out the dehydration of 2-methylcyclohexanol using 4:1 mixture of phosphoric and sulfuric acid. Gas Chromatography was then used to measure the products. Two products were formed. The theoretical yield of the alkene mixture was 3.914 g. The actual yield of the mixture was 0.73 g. The percent yield for the reaction was 18.65%. Peak A had an area of 0.3 mm2 and a percentage of 4.6 %. Peak B had an area of 6.21 mm2 and a percentage of 95.39%.
Introduction
The acid used speeds up the dehydration of the alcohols. This is an elimination reaction. Water is eliminated from the reaction and the products formed are alkenes. The reaction follows Zaitsev’s rule because it is an elimination reaction. Zaitsev’s rule says that the double bond that is more highly substituted or more stable will be dominant in the products. In the experiment the dehydration of 2-methylcyclohexanol takes place. 2 methyl-cyclohexanol has a very poor
Name______________________________________________________________________
Lab Partner_________________________________________________________________
Lab Day and Time____________________________________________________________
Report appearance
(Typed, on time, in order, presentable, complete)
1
2
3
4
5
Abstract
1
2
3
4
5
Introduction
1
2
3
4
5
Reaction Scheme and Curly arrow mechanism
2
4
6
8
10
Table
1
2
3
4
5
Experimental Procedure
1
2
3
4
5
Calculation (percentage yield and composition of isolated materials)
1
2
3
4
5
Results and Discussion (include GC)
1
2
3
4
5
Completion/participation of the Experiment
1
2
3
4
5
Total
Comments
/50
Lab 9 Report Template: Acid Catalyzed Dehydration of 2-Methylcyclohexanol
Abstract
In Experiment 9, distillation was used to carry out the dehydration of 2-methylcyclohexanol using 4:1 mixture of phosphoric and sulfuric acid. Gas Chromatography was then used to measure the products. Two products were formed. The theoretical yield of the alkene mixture was 3.914 g. The actual yield of the mixture was 0.73 g. The percent yield for the reaction was 18.65%. Peak A had an area of 0.3 mm2 and a percentage of 4.6 %. Peak B had an area of 6.21 mm2 and a percentage of 95.39%.
Introduction
The acid used speeds up the dehydration of the alcohols. This is an elimination reaction. Water is eliminated from the reaction and the products formed are alkenes. The reaction follows Zaitsev’s rule because it is an elimination reaction. Zaitsev’s rule says that the double bond that is more highly substituted or more stable will be dominant in the products. In the experiment the dehydration of 2-methylcyclohexanol takes place. 2 methyl-cyclohexanol has a very poor