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

The aim of this investigation is to analyse what cations and anions are present in Mummion a preservative for mummies

Extracts from this document...


Name: Sasha Westfield Unit: Science at work G621 Class code: VSS6 Assignment Objective: AO3 A Preservative for mummies Introduction The aim of this investigation is to analyse what cations and anions are present in Mummion, I will investigate this by doing two types of tests. Mummion is an inorganic solid that is obtained from dried up lake beds, Mummion was used by Egyptians to mummify dead bodies, they would treat the body with a natural occurring preservative which is known as Mummion. An Archaeologist would most likely want to investigate Mummion because they would want to know more about this substance or replicate it. First Test Flame test procedure To find the cations present in mummion I will be carrying out a flame test. I will need the following equipment: Bunsen burner Hydrochloric acid Heat proof mat Nichrome rod Goggles Lab coat Samples of metal ions First, I need to clean the nichrome rod by dipping it in hydrochloric acid. I will then test the cleanliness of the Nichrome rod by inserting it into a gas flame Once the rod is clean I will then choose one of the metal ion samples by adding a bit to the nichrome rod. I will then place it into the blue gas flame to see what colour it obtains. I will eventually repeat the first 3 steps till I have tested all the metal ion samples. ...read more.


Evaluation I can?t be very certain that sodium is present in the Mummion because we didn?t test every chemical possible. This has a huge impact on my final analysis because it may not be sodium it could be any other chemical I may not have tested. But since I wasn?t able to test these other chemicals I have come to the conclusion that sodium is defiantly present in the Mummion crystals. The flame test could have given me wrong result too because I could have interpreted the colours wrong which may of had an effect on my final result. I may not have cleaned the nichrome rod after each test properly which may have given me inaccurate results. To improve my investigation I could redo theses test accurately to make sure my final results are correct by making sure that the nichrome rod was cleaned properly. Second Test Wet test Procedure To test for the anions present in mummion I will need to do a wet test, the following equipment I need are: Spatula Rack of test tubes Glass rod Nitric acid Ammonia solution Sliver nitrate solution Barium chloride solution Hydrochloric acid Distilled water Metal salts I will start by using a spatula to put a little of one of the sample salts into a clean test tube and then add few drops of nitric acid. If it starts to fizz I will add more nitric acid to generate more gas, where I can let it bubble through lime water to see if it is carbon dioxide. ...read more.


Corrosive irritant Causes burns to skin and eyes Oxidiser Protective clothing such as gloves or lab coat High risk level Seek medical attention and wash hands after contact Barium Chloride (0.1) Toxic Contact with skin or eyes even inhalation Always keep a lab coat on High risk level Seek medical attention if contact with eyes or skin Hydrochloric acid Irritant Toxic Contact with skin and eyes ingestion Always wear goggles and gloves when handling chemicals High risk level Obtain medical help Analysis I found that the anions present in mummion is carbonate and chloride I know this because it was the two that worked the best and gave the same results as the mummion sample . This could mean that my mummion sample was either sodium carbonate or sodium chloride. Evaluation My experiments went very well but if I could redo them I would make some changes. For instance I may have put too much of the sample salts which could have given me wrong results to improve this I would measure the sample salts and make sure they all were measured the same. Some of the test I did gave confusing results which I then interpreted it as how I saw it which may have had an impact on my final results to make this better I could redo the test a few times to make sure the right results were given. Overall I think that my experiments were okay and there wouldn?t be any way to make them better. ...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 Inorganic 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 Inorganic Chemistry essays

  1. Peer reviewed

    Determining the concentration of acid in a given solution

    5 star(s)

    * Fill the volumetric flask up a bit more, but be careful not to go too close to the line. * Get a small dropping pipette and rinse with distilled water to make sure it isn't contaminated * Place waste solutions in a plastic beaker * Get another small glass

  2. effects Concentration and Temperature on the Rate of Reaction

    M1 For example, to make a 250ml solution with concentration 0.008M of potassium bromide from a solution of 0.01M, you would do the following: V1 = (0.008 x 250ml) 0.01 = 200ml This means that you would need to use 200ml of the original 0.01M solution with 50ml of distilled water to make 250ml of 0.008M solution.

  1. an experiement to test for anions and cations

    Liquids Acids being used in experiment, ALL are corrosive and SOME give off pungent fumes. Correct procedures must be followed if any spillages occur. All liquids, when finished should be diluted and disposed off down the sink, unless told otherwise.

  2. decomposition of copper carbonate

    * 1 50 cm� burette, accurate to 0.05 cm�, used to collect the evolved gas * 1 heat mat underneath Bunsen burner * 1 bung to close test tube, leak proofed * 1 spatula to deliver CuCO3 * 1 top pan balance, accurate to 0.005g , is used to weigh

  1. Thermal Decomposition of Calcium Carbonate

    The slower reaction may cause more heat to be lost during the course of the reaction. To make the experiment more accurate I could make the solids into a more powered form, which will speed up the reaction as a result of an increase in surface area.

  2. Chemistry Iodine Clock

    Mass = 158.105 x 0.0025 = 0.3953g Instruction to make standard solution of Sodium thiosulphate 1- Take lab safety to consideration i.e. wear lab coat, goggles and gloves if needed 2- Measure the solid on an accurate balance, Tare the balance so it shows zero (use a balance that measures

  1. Aim To study the effect of concentration of iodide ion ...

    2 Rate of reaction The rate of reaction is the reciprocal of time taken for formation of blue-black solution. Since there are three repetitions for each set of concentration, the rate of reaction is the reciprocal of the average time taken.

  2. Chemistry - Data Analysis

    mistakenly were taken before or after the minute mark by a couple of seconds. It would also take the exact reading, using a manual thermometer it is harder to read the exact temperature. There is an error in reading the temperature accurately and this could be +/-1�C.

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