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Oganic Chemistry Preparation of Alkenes

Autor:   •  October 5, 2015  •  Lab Report  •  1,291 Words (6 Pages)  •  747 Views

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Preparation of Alkene from alcohol by Dehydration/ Oxidation of Cyclohexanol to Apidic acid by HNO3

Reinaldo George

Date: Tuesday 25th August, 2015

Aim:         1) To prepare and alkene from an alcohol by dehydration

2) To oxidize cyclohexanol to apidic acid by NHO3

Experimental:

Chemicals:

Name

Structure

Physical

Cyclohexanol

[pic 1]

Liquid, mp (161oC),

MW =

Cyclohexene

[pic 2]

Liquid, mp (83oC),

MW =

Apidic Acid

[pic 3]

Liquid, mp ( 153oC),

MW =

Reagents: H3PO4, Na2CO3, CaCl2

Equipment:

Round Bottom Flask

Vacuum Adapter

Hot plate/stirrer

[pic 4]

[pic 5]

[pic 6]

Buchner Funnel

Filter Flask

Vacuum Adapter

[pic 7]

[pic 8]

[pic 9]

Setup:

[pic 10]

Procedure: A literature procedure was followed without any modifications.

Chemical Reaction/Mechanism: [pic 11]   

Data:

Preparation of Alkene from alcohol by Dehydration

Initial Weight of Test tube

14.4200g

Product recovered

1.4g

Percentage Yield

14%

Oxidation of Cyclohexanol to Apidic acid by HNO3

Weight of Apidic acid obtained

0.45g

Cyclohexanol used

2.0g

Percentage Yield

22.5%

Results:

  1. Percentage Yield = amount obtained/amount used x 100%

= 0.45g/2.0g x 100% = 22.5%

...

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