100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
BTEC applied science: Unit 4 assignment 4.2 B&C *DISTINCTION GRADE* £6.99
Add to cart
Quickly navigate to
Preview
  2.  
  3. PEARSON (PEARSON)
  4.  
  5. Applied Science 2016 NQF
  6.  
  7. Unit 4 - Laboratory Techniques and their Application

Essay

BTEC applied science: Unit 4 assignment 4.2 B&C *DISTINCTION GRADE*

1 review
 3 purchases

This is the second and third assignments incorporated together required for unit 4 laboratory techniques and their applications for BTEC applied science. this was a mandatory unit for me and I have put a lot of work to it which will guarantee you with a distinction grade in the assignment. The ass...

[Show more]

Preview 2 out of 18  pages

Document information

  • November 15, 2022
  • 18
  • 2021/2022
  • Essay
  • Unknown
  • A

Subjects

Written for

All documents for this subject (251)

1  review

review-writer-avatar

By: ahkstimson • 2 year ago

Advertised as assignments B&C for this unit but actually only B delivered in this package. What is there is OK rather than great.t disti

reply-writer-avatar

By: oanaandrada • 2 year ago

Hello, I have just checked the Pearson specification for unit 4 assignment B&C and in aim C it is only specified that purity tests should be considered to achieve it, surely this assignment covers both aims to achieve a distinction overall. x

reply-writer-avatar

By: ahkstimson • 2 year ago

Unit 4, Task B is set on production of ethyl ethanoate including purity test. Task C is set on production of asprin and is another full report. If you want to be fair with people you should alter your description to make clear you are only covering ethyl ethanoate in this offering, to avoid more disappointment and confusion. Thanks

Seller

avatar-seller
oanaandrada

Reviews received

Content preview

The report will contain information about our investigation of producing and testing the
purity of ethyl ethanoate which is used as a substance for making nail polish remover for a
company. By testing its purity, the company we are working for will determine its efficiency.
We must compare our laboratory work with the industrial process used by the company so
that it can be decided whether the product will be manufactured to be made in a larger
scale.
Ethyl ethanoate is an ester produced during esterification which is known to be a slow and
reversible reaction. The production involves the process of heating a carboxylic acid which in
our case is: ethanoic acid with an alcohol: ethanol. In between the process a catalyst must
be used so that it can speed up the reaction. We used concentrated sulphuric acid, in
smaller amounts because larger amounts might lead to product being wasted and would
have had an effect in the separation process which can also affect the resulting yield. As well
as having chemicals which are volatile meaning that reactants and products can be lost
giving us a very small yield.




Ethyl ethanoate is commonly used in pharmaceuticals, perfumes, or flavourings. It can act as
an organic solvent, but it is important in our investigation that it can be effective to be used
as a component for nail polish remover.

Equipment used:

, OBSERVATION RECORD

We have investigated the production of ethyl ethanoate using reflux and distil-
lation method.
To provide a safe practical, we set up our own equipment for each method.
This tested our skills and abilities to work safely as we paid attention for not
breaking the glassware or measuring the right amounts of chemicals, as well as
not causing spillages of any chemicals involved throughout the experiment.
Reflux and distillation processes, require heating of organic solvents, so all
chemicals used should not be exposed to heat sources, especially Bunsen burn-
ers because it can provide very high heat source which can ignite organic
solvents and vapours.
To perform a safe practical, we used a water bath instead of a naked flame,
when heating reactants above 100 ° C. We used a large container to hold the
reaction flask.
This technique is also used for having a controllable heating when both flaks
are used, naked flames are not used, minimises the risk of ignition.
We also ensured that:

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller oanaandrada. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for £6.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

69052 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy revision notes and other study material for 15 years now

Start selling
£6.99  3x  sold
  • (1)
Add to cart
Added