• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Extraction of alcohol from beer by distillation.

Extracts from this document...


´╗┐Dr. Sharma Chemistry Unit 22 EXTRACTION OF ALCOHOL FROM BEER AIM The objective of this practical is to extract alcohol (pure) from (Tennenent?s Super Strong Lager) beer. APPARATUS & CHEMICALS 1. Thermometer 2. Measuring Cylinder 3. Spatula 4. Anti-bumping Granules 5. Boiler (Round Bottom Flask) 6. Fractional Distillation Flask 7. Matches 8. Flameless Heater 9. Condenser 10. Bucket With Ice 11. Moveable Platform 12. Watchglass 13. Pipette 14. Tennenent?s Super Strong Lager (Beer) METHOD & OBSERVATIONS 1. Health & Safety precautions were taken; this includes wearing lab coats and goggles in order to avoid harm to one?s body or surroundings. 2. The apparatus was set up to carry out the experiment. ...read more.


7. The liquid pours down into the round bottom flask inside a bucket with ice, to maintain its liquid state. 8. The thermometer was constantly observed, this is because the boiling point of the beer is 78°C and the boiling point of water is 100°C, therefore we must make sure we do not exceed the temperature over the beer’s boiling point, as our desired product is only the alcohol. 9. When the water molecules vaporised and began to pass the distillation flask, it quickly condensed and poured back down into the boiler. 10. After some time, the boiling had stopped; this is a sign that there is no more alcohol left (because alcohol expands and causes the bubbles), and so the power of the heater was turned off. ...read more.


4. An alternative way of confirming the test for alcohol is by recognising the scent of alcohol. LABELLED DIAGRAM RESULTS Calculations on beer experiment: 1. Volume of beer (Tennenent?s Super Strong Lager) = 25Ocm3 2. Percentage of alcohol by volume/volume=9% 3. Theoretical yield or maximum yield =(9/100)x beer volume = (250) = 9/100 x 250 = 22.5cm3 1. Volume of alcohol collected by distillation of beer = 16cm3 2. Percentage yield of alcohol from beer = (actual yield/theoretical yield) x 100 = 22.5/16 x 100 = 71.1% CONCLUSION In conclusion, pure alcohol was successfully produced by the fractional distillation method; however we were not able to collect the full theoretical yield due to the error factors. ________________ | Page Stephanie Da Silva ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Organic Chemistry section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Organic Chemistry essays

  1. The aim of this experiment is to produce Aspirin. This is an estrification in ...

    0.0165 + 0.2934 = 0.3099 0.2934 - 0.0165 = 0.2769 This means the mass of aspirin that reacted lies between the following values, So therefore the confidence limit lies between 0.3099 + 0.2769 Back titration (pure aspirin) Balance error Percentage error = 0.00005 x 100 = + 0.00332 1.5067 Pipette (class B)

  2. Comprehensive and Detailed Chemistry notes

    -- Alternative sources of carbon compounds must be developed to allow economies to grow -- Biomass is a very important candidate in being used in developing alternatives -- Cellulose is a major component of biomass -- Biomass is a very large energy resource -- Biomass is renewable -- Cellulose can

  1. producing electricity through wind power.

    * Wind farms can act as tourist attractions. * Wind turbines are a good method of supplying energy to remote areas. * Each 1 MWh of electricity that is generated by wind energy contributes to reduce the 0.8 to 0.9 tonnes of greenhouse gas emissions that are produced by coal or diesel fuel generation each year.

  2. Burning alcohol in the air.

    This can be worked out by useing the formula: q = mass X specific heat capacity X temperature rise 1000 Where q is the quantity of heat. The specific heat capacity is the amount of energy required to heat the substance, and is calculated using the formula q = MC?,

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work