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BTEC Applied Science - Unit 4 - Ethyl Ethanoate (Achieved DISTINCTION)

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BTEC Level 3 Applied Science – Unit 4: Ethyl Ethanoate * Achieved DISTINCTION * Practical synthesis and investigation of ethyl ethanoate * Determination of the boiling point of the product * Experimental results and percentage yield calculations * Identification of the limiting reactant and theoretical yield * Infrared spectroscopy results and identification of functional groups * Analysis of factors affecting yield and purity * Discussion of impurities and limitations of the practical * Explanation of ethyl ethanoate, its properties and uses * Research into industrial production methods * Comparison of laboratory and industrial Fischer esterification * Discussion of industrial equipment, processes and purification techniques

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Unit 4: Ethyl Ethanoate

Aim: to test the boiling point of ethyl ethanoate.

Practical Part

We used the following equipment to perform this practical:

• Ethyl ethanoate
• Test tube
• Thermometer
• Rubber band
• Water bath
• Bunsen burner

Results

Temperatures were noted when:
Boiling point of the given
The evolution of gas bubbles
Rapid continuous evolution organic liquid (t1 + t2) / 2 (°C)
just stops t2 (°C) (after
of gas bubbles occurs t1 (°C)
removing from the flame)

78°C 84°C 81°C



Calculation and Results of Ethyl Ethanoate % Yield

Density gcm-1 Volume Used cm3 Mass Used g
Ethanol 0.789g/cm3 9cm3 7.101g
Ethanoic Acid 1.05g/cm3 5cm3 5.25g


Number of Moles Limiting Substance
Ethanol 7.101/46= 0.154
Ethanoic Acid 5.25/60= 0.0875 Yes, due to least amount of moles


Theoretical 100% Yield Calculation:

The reaction can produce 0.0875 moles of ethyl
Mass Ethanoic Acid = 5.25g
ethanoate by a 100% reaction
Mr Ethanoic Acid = 60 What would this mass be?
Number of Moles Ethanoic Acid = 0.0875 Mass = (Moles * Mr) 0.0875 * 77 = 6.7375
5.0cm3 Ethanoic Acid = 0.0875 moles Theoretical 100% yield mass = 6.74

Document information

Study Level
BTEC
Subject
Applied Science
Uploaded on
September 18, 2026
Number of pages
4
Written in
2024/2025
Type
Essay
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  • ethyl
  • ethanoate
  • ethyl ethanoate
  • chemistry
  • chem
  • 2026
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  • 2023
  • 2024
  • applied science
  • science
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