• 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)

    Titrating * Get the burette in a clamp and rinse it by pouring sodium carbonate solution down and letting it out the tap into a plastic waste beaker * Make sure there are no bubbles in the spout by pouring more solution through and tapping the tip to remove bubbles

  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

    exactly 0.15g 6 transfer CuCO3 into middle of test tube and insert the bung tightly (no air gaps) 7 measure temperature 8 begin heating powder gently with Bunsen burner 9 gas is led into vertical burette 10 when no more gas bubbles are formed, lift end of delivery tube out

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

    Time taken for blue-black solution to form The time taken for the formation of blue-black solution will be measured using a digital stop watch to reduce uncertainty. The time taken is therefore the dependent variable. To reduce random errors, three repetitions will be performed for each set of concentration.

  1. Organic and Inorganic Fertilisers

    This is because unlike organic manures, the exact Nitrogen content is known and application rates can therefore be more accurately calculated to produce optimum yields whilst minimizing environmental pollution in the form of nitrate leaching to water. (Arable Handbook brochure from Kemira Grow-How).

  2. Chemistry - Data Analysis

    41 45 45 45 45 45 46 28 41 45 45 30 40 39 40 44 43 44 44 44 45 30 40 44 44 These results were then plotted on graphs and these were then analysed for the purpose of deriving a meaningful relationship between the materials and their ability to lose heat.

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