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Unit 14 Assignment D
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  • Course
  • Unit 14 - Applications of Organic Chemistry
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  • PEARSON (PEARSON)

This assignment contains three experiments: -chlorination of 2-methylpropan-2-ol -nitration of methyl benzoate - preparation of an ester (ethyl ethanoate) they contain conclusions and evaluation

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  • June 17, 2023
  • July 14, 2023
  • 21
  • 2022/2023
  • Other
  • Unknown

Subjects

  • btec
  • applied science
  • level 3
  • unit 14
  • assignment d
  • making designer chemicals
  • chlorination of 2 methylpropan 2 ol
  • nitration of methyl benzoate
  • preparation of an ester ethyl ethanoate

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  • BTEC
  • PEARSON (PEARSON)
  • Applied Science 2016 NQF
  • Unit 14 - Applications of Organic Chemistry
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MAKING DESIGNER CHEMICALS




Unit 14 Assignment D
UNIT 14 APPLICATIONS OF ORGANIC CHEMISTRY

,24/02/2023



Table of Contents
INVESTIGATING CHLORINATION OF 2-METHYLPROPAN-2-OL...............................................................2
Aim....................................................................................................................................................2
Information........................................................................................................................................2
Apparatus..........................................................................................................................................3
Risk assessment.................................................................................................................................4
Procedure..........................................................................................................................................4
Results...............................................................................................................................................5
Conclusion.........................................................................................................................................6
Evaluation..........................................................................................................................................6
NITRATION OF METHYL BENZOATE.......................................................................................................7
Aim....................................................................................................................................................7
Information........................................................................................................................................7
Apparatus..........................................................................................................................................8
Risk assessment.................................................................................................................................9
Procedure..........................................................................................................................................9
Results.............................................................................................................................................10
Percentage yield..........................................................................................................................10
Conclusion.......................................................................................................................................10
Evaluation........................................................................................................................................11
PREPARATION OF AN ESTER (ETHYL ETHANOATE)..............................................................................12
Aim..................................................................................................................................................12
Information......................................................................................................................................12
Apparatus........................................................................................................................................14
Risk assessment...............................................................................................................................15
Procedure........................................................................................................................................15
Results.............................................................................................................................................16
Conclusion.......................................................................................................................................17
Evaluation........................................................................................................................................19
References...........................................................................................................................................20




1

,24/02/2023



INVESTIGATING CHLORINATION OF 2-METHYLPROPAN-
2-OL
Aim

To produce and purify a sample of 2-clhloro-2-methypropane.

Information

The following is the equation for the reaction between 2-methypropan-2-ol
and hydrochloric acid:

(CH3)3COH + HCL (CH3)3CCL +
H2O

Here’s the following mechanism of halogenation of an alcohol:

In step one because of the oxonium ion from the acid the alcohol is
protonated. Which is than attacked by a nucleophilic attack by the
chlorine ion on the carbon C-O bond (step 2). And in step 3 the chlorine
bonds to the carbon chain to form a chloro-alkane.




2

, 24/02/2023




Apparatus

 250 cm3 conical flask with bung
 100 cm3 separating funnel with bung
 250 cm3 beaker
 Filter funnel to fit separating funnel
 Apparatus for distillation with 50 cm3 pear-shaped flask
 Thermometer that is able to read up to 100ᵒC
 25 cm3 and 100 cm3 measuring cylinders
 10 cm3 of 2-methylpropan-2-ol
 35 cm3 of Concentrated hydrochloric acid
 0.1 mol/dm3 sodium hydrogencarbonates solution

3

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