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

Experiment. The aim of this experiment is to identify which substances are present in the flu medicine powder

Extracts from this document...


´╗┐Experiment A1: Qualitative Tests on Organic compounds The aim of this experiment is to identify which substances are present in the unknown white powder. This includes the compound that are said to be present and the substances that are typically found in a flu powder. The results from this test are as follows: Test for substance Observations Explanation Phenylephrine Hydrochloride test with Cu2+ +CuSO4: the solution turned into a light blue colour. +NaOH: the solution turned dark blue +Ether: the solution split into two layers; clear and dark blue at the bottom. From the observation made it is visible that unknown white powder did test positive for Phenylephrine. Up until the addition of NaOH the outcomes of the two test were similar. Despite there being a yellow precipitate at the bottom the unknown white powder does contain Phenylephrine. Unknown tested for Phenylephrine +CuSO4: solution was cloudy to begin with. ...read more.


However ascorbic acid was also tested with Cu2+. This is because the ascorbic acid in the white powder may also react with the Cu2+. However the with ascorbic acid and the unknown white powder the test had similar results. Ascorbic acid test with Cu2+ + NaOH: solution remained clear +CuSO4: solution turned green then yellow. +Heat: solution turned a muddy orange colour. Unknown tested for Lactose + NaOH: solution turned cloudy +CuSO4: solution turned green to a yellow cloudy colour +Heat: the solution turned into a light brown colour. Caffeine test with I2 + Iodine: solution turns into a clear orange colour. +Hydrochloric Acid: solution turns cloudy brown colour. The observation made for this test had different outcomes. After adding hydrochloric acid the unknown white powder behaved in a completely different way by splitting into two layers. This means that it test negative for caffeine. Unknown tested for Caffeine + Iodine: solution remains cloudy white +Hydrochloric Acid: solution split into two layers; clear and cloudy at the bottom. ...read more.


From observation made from a different group it showed that paracetamol is actually present in the unknown white powder and does test positive for this test. Unknown tested for Paracetamol +ferric chloride: solution turns brown and slight fizzing occurs The constituents of the Unknown white powder are Phenylephrine Ascorbic acid (Vitamin C) Lactose Carbonate Paracetamol Problems with the tests Through performing these different tests many errors could have occurred. As the unknown white powder contains a mixture of many different substances, when performing the tests for the different organics compounds some substances may prevent the reaction from occurring. As this test consists of using many different chemical it is also possible that cross-contamination of the chemicals may have occurred hindering the reaction for some tests. Through the qualitative test is showed that some of the substances in a typical flu powder are also found in the unknown white powder. However now it is important to find out the quantity of the substances in the unknown white powder. The following test took a more quantitative approach to find out the amount of the substances present. ...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. Marked by a teacher

    Experiment to Determine Acidities of Wine. The purpose of this experiment is to ...

    5 star(s)

    Total Acidity Australian Volume of NaOH added (cm3) pH 0 3.2 3 3.3 6 3.4 9 3.4 12 3.5 15 3.6 18 3.7 21 3.8 24 3.8 27 3.9 30 4 33 4.1 36 4.1 39 4.2 42 4.3 45 4.4 48 4.5 51 4.6 54 4.7 57 4.8 60

  2. Preparation of haloalkane. The purpose of this experiment is to prepare 2-chloro-2-methylpropane from ...

    This pathway does not form mirror image but only one kind of product. If the product has an optical center, the final product is considered to be optical active as the product is not a racemic mixture. Other ways of doing this experiment PCl3, PCl5 and SOCl2 can be to to replace HCl with the formation of different side products.

  1. The aim of this experiment is to investigate the enthalpy change of combustion for ...

    Another complication was that it was hard to measure the temperature, start the stop clock and continue to stir the water simultaneously. This would have therefore increased the human error in the experiment along with the human error produced when measuring the temperature on the thermometer.

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

    * White Tile - So the colour of the solution is easier to see. * Goggles - Used to protect the eyes throughout the experiment. * Laboratory coat - Used to protect the skin and clothing. * Analytical balance- used to way the aspirin and sodium hydroxide accurately to 4 decimal places.

  1. investigating the amount of ascorbic acid present in fruit

    The safety goggles will prevent the NBS solution from entering my eyes. * Wear protective gloves to prevent skin exposure, this decreases the risk of the NBS solution from coming into contact with my skin. Also I will be wearing a lab to make sure that it covers the exposed

  2. Comprehensive and Detailed Chemistry notes

    catalyse a complex biochemical reaction series in which sugars are converted to glucose -- The glucose then undergoes a process of fermentation in which ethanol and carbon dioxide are produced -- Molasses syrup is a by product of the sugar industry -- It contains a high percentage of sucrose Hydrolysis

  1. Thin layer chromatography experiment to determine which analgesic tablets contain caffeine.

    Do not take the caffeine in by mouth and hands must be washed afterwards. Squash a little piece of tablet A using a grinder and add a VERY small amount of solvent (50/50 ethanol solvent for dissolving sample A). Ethanol (cleapss p60)

  2. Buffer enzymes. The aim of the experiment was to identify the affects of ...

    For example the protease enzyme pepsin works best in acidic conditions where it is found in the stomach that has a pH of 2. If the pH was increased the pepsin would denature and would not be able to hydrolyse fats.

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