Ethyl ethanoate Study guides, Revision notes & Summaries
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AQA A-level CHEMISTRY 7405/3 Paper 3 Version: 1.0 Final *JUN237405301*QUESTION PAPER & MARKING SCHEME/ [MERGED] Mark scheme June 2023
- Exam (elaborations) • 62 pages • 2024
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AQA 
A-level 
CHEMISTRY 
7405/3 
Paper 3 
Version: 1.0 Final 
*JUN* 
IB/M/Jun23/E9 7405/3 
For Examiner’s Use 
Question Mark 
1 
2 
3 
4 
5 
6 
Section B 
TOTAL 
Friday 23 June 2023 Morning Time allowed: 2 hours 
Materials 
For this paper you must have: 
• the Periodic Table/Data Booklet, provided as an insert (enclosed) 
• a ruler with millimetre measurements 
• a scientific calculator, which you are expected to use where appropriate. 
Instructions 
• Use black ink or black ball-poin...
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Unit 4 Aim B: Preparation and Testing of Ethyl Ethanoate (DISTINCTION)
- Essay • 12 pages • 2023 Popular
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This is my distinction grade assignment for unit 4 aim B on the preparation and testing of ethyl ethanoate, including the industrial manufacture. All criteria were met and I was awarded distinction. 
 
If you have any questions or concerns, please do not hesitate to get in touch. 
 
I hope you find my assignment helpful!
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Unit 4b - Making ethyl ethanoate
- Essay • 12 pages • 2022
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This contains all the details needed for making ethyl ethanoate, including; Risk assessment, preparation of an Ester, methods, results as-well as calculations conclusions, laboratory manufacturing, Infrared spectroscopy of ethyl ethanoate, comparisons and factors and evaluation. Please ensure you look through your assignment brief as it targets for each school is different
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Unit 4 Learning Aim B (making ethyl ethanoate)
- Essay • 7 pages • 2022
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This assignment should be used for ideal purposes only although this assignment has achieved distinction level but this can't guarantee of giving you a distinction because each school may slightly have different criteria requirements. Everything you may need to complete your assignment might be found in this document.
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Unit 4 Aim B up to Distinction level
- Essay • 34 pages • 2023
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Unit 4 Aim B up to Distinction level with industrial and laboratory investigations and calculations for the purity and yield (percentage yield) of ethyl ethanoate
And that's how you make extra money
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Applied Science: Unit 4 - Assignment 3 (Preparation of Ethyl Ethanoate)
- Essay • 12 pages • 2022
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This assignment is a compulsory assignment in applied science, which covers the laboratory techniques used within the medical industry (i.e. pharmaceutical and medical researching organisations) and their applications within both the workplace and the laboratory within both colleges and universities. This assignment was submitted in December of 2020, in which I was provided with a DISTINCTION grade by two different teachers under Pearson's BTEC (or T-levels) level 3 standard. 
 
Within Unit 4: ...
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Methods for Making Ethyl Ethanoate
- Other • 2 pages • 2023
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Methods for Making Ethyl Ethanoate. Industrial method 
Ethyl ethanoate is made by esterification. A mixture of sulfuric acid, acetic acid and ethanol 
are heated and poured into an esterifying column. The mixture that evaporates first goes 
into a second column. 85% of ethyl acetate is separated. After distillation occurs, water is 
added. There are now two layers. T
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AQA A-level CHEMISTRY (7405/3) Paper 3 Mark scheme June 2023 | VERIFIED.
- Exam (elaborations) • 30 pages • 2024
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AQA A-level CHEMISTRY (7405/3) Paper 3 Mark scheme June 2023 | VERIFIED. there is a bung/stopper (in the end of the condenser) 
M2 idea of pressure build up 
M3 water goes the wrong way through the condenser 
M4 water does not fill the condenser / condenser is not cool 
enough 
owtte 
M2 stopper could be forced out 
IGNORE glass shatters / explodes 
water in at top / out at bottom 
IGNORE condenser is wrong way round 
ALLOW less condensing / 
vapour/gas/reactants/products will not condense 
/ no...
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AQA A-level CHEMISTRY (7405/3) Paper 3 Mark scheme June 2023 | VERIFIED.
- Exam (elaborations) • 30 pages • 2024
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AQA A-level CHEMISTRY (7405/3) Paper 3 Mark scheme June 2023 | VERIFIED. catalyst ALLOW reduces Ea 
IGNORE speeds up reaction 
IGNORE provides alternative path 
IGNORE proton donor 
IGNORE dehydrating agent 
1 
Question Answers Additional comments/Guidelines Mark 
1.2 electric heater/heat mantle or (hot) water bath IGNORE not with a Bunsen/naked flame / gently 
ALLOW hot water 
ALLOW heating/hot plate/ sand bath / oil bath 
ALLOW reference to flame/Bunsen if in context 
of heating a water bath 
...
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AQA A-level CHEMISTRY (7405/3) Paper 3 Mark scheme June 2023.
- Exam (elaborations) • 30 pages • 2024
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AQA A-level CHEMISTRY (7405/3) Paper 3 Mark scheme June 2023. catalyst ALLOW reduces Ea 
IGNORE speeds up reaction 
IGNORE provides alternative path 
IGNORE proton donor 
IGNORE dehydrating agent 
1 
Question Answers Additional comments/Guidelines Mark 
1.2 electric heater/heat mantle or (hot) water bath IGNORE not with a Bunsen/naked flame / gently 
ALLOW hot water 
ALLOW heating/hot plate/ sand bath / oil bath 
ALLOW reference to flame/Bunsen if in context 
of heating a water bath 
NOT any ind...
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