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

The main purpose of this investigation is to test and analyse Mummion. By doing this we would hopefully be able to see what chemicals it contained.

Extracts from this document...

Introduction

´╗┐Assignment 2.4 ? A preservative for mummies 2.4.1 Introduction What is mummification? Mummification is an ancient Greek method which is intended to dehydrate the body. This would preserve the body. They believed that the body needed to be intact to serve as host for the soul. If the body was left to rot, it would destroy their soul. The process of mummification would entail the removal of the brain and other internal organs, each of these then mummified and then stored in jars. This then led on to the drying out process. The body would then be left outside to dry. After the body was completely dry. It would lead onto the wrapping of the body. The body would be wrapped. A final shroud piece would be placed on the mummy to keep all of the wrappings together. Mummion was added to the shroud to ?give? it all together. What is Mummion and what is it used for? Natron (Mummion) is a colourless salt found in various locations in the earth. Mummion is a dehydrated sodium carbonate mineral. Natron is known commonly to be used for mummification. ...read more.

Middle

Add a few drops of nitric acid solution 3. Add a few drops of silver nitrate solution 4. Results: 1. White precipitate ? Chloride (Cl-) ions 2. Cream precipitate ? Bromide (Br-) ions 3. Yellow precipitate ? Iodide (I-) ions Test for Sulphate ions (SO42-) 1. Prepare a solution of your test sample using distilled water 2. Add drops of nitric acid solution until any fizzing stops 3. Add a few drops of barium nitrate solution 4. If a white precipitate forms, the sample contains sulphate (SO42-) ions Test for Carbonate ions (CO32-) 1. Add a few drops of dilute hydrochloric acid solution to your dry sample 2. If a gas is given off, test to see if it is carbon dioxide by bubbling it through lime water (see below) 3. If the lime water turns milky white, carbon dioxide is present and the sample must have contained carbonate ions Test for Copper ions (Cu2+) 1. Prepare a solution of your test sample using distilled water 2. Add a few drops of ammonia solution 3. If the sample contains copper(II) ions (Cu2+), a pale blue precipitate forms 4. ...read more.

Conclusion

In the inference, if the result was positive, it means the chemical was present in the Mummion. 2.4.7 Evaluation In this investigation the thing I feel was most successful was how i accurately purified the Mummion. By not only using one filter paper at a time, I used two. This allowed the solution to go through two stages of paper, allowing it to be filtered well. This allowed our Mummion crystals to become more pure. In this investigation I feel I could have improved on the amount of crystals we came out with. This was mainly because the evaporating dishes were split. This meant that we had to re-do the whole purification of the Mummion again. This wasted a lot of time, which could have been spending completing the qualitative tests. I think I did keep to the plan throughout this investigation. Although when purifying the Mummion, we did use more chemical to get a clearer result. For example, we added more distilled water to try a spate the chemicals more. By completing this experiment successfully, it allowed me to find out that Mummion contained sodium, chloride and carbonate ions. ...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 Physical 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 Physical Chemistry essays

  1. Determination of the Amounts of Sodium Hydroxide Solution and Sodium Carbonate in a Mixed ...

    I have used an unreasonably long time to wash the apparatus and my motion was too slow. If I could allocate my time appropriately, I would not have made so many errors. Another way to improve is to use a pH meter instead of using an indicator to determine the equivalence point.

  2. Investigation to analyse some fruit and vegetable juices for the contents present in them.

    of cuprous oxide. RCHO + 2Cu2+ + + Cu2O + 3H2O B. Tollen's Reagent Test Tollen's reagent is an ammoniacal solution of silver nitrate and is prepared by adding NH4OH solution to AgNO3 solution till the ppts. Of Ag2O first formed just redissolve.

  1. An Introduction to Qualitative Analysis

    to identify an unknown containing two or more cations of Group 2 elements. The Group 2 elements are Mg, Ca, Sr, and Ba. To identify an unknown containing two or more cations of Group 2 elements, we first add CrO4 into the solution.

  2. Investigating the Rate of the Reaction between Bromide and Bromate Ions in Acid Solution

    A general approximation for the effect ofiv temperature on the rate of a reaction is that, if the temperature increases by 10K, then the rate of reaction doubles. Temperature is proportional to kinetic energy, and kinetic energy is given by , where m is the mass of a particle, and v is the particle's speed.

  1. The purpose of this experiment was to isolate and characterize macromolecules.

    1.1 8.3 0.13 (b) 2.4 8.3 0.29 (c) 3.0 8.3 0.36 Adenine 4.4 8.3 0.53 Cytosine 3.1 8.3 0.37 Uracil 4.3 8.3 0.52 Adenine-Cytosine-Uracil (a) 2.9 8.3 0.35 (b) 4.1 8.3 0.49 Note - If Nucleic Acid has additional parts, it means that there were multiple separations.

  2. Test for reducing sugars (Benedict's Test)

    This hardens the blood vessels and decreases the size of lumen (space) of blood vessels , thus decreasing the flow of blood (increasing the blood pressure)

  1. Investigating the rate of reaction between peroxydisulphate(VI) ions and iodide ions

    This iodine is then used in the second reaction (R2). Temperature Having a reaction at higher temperatures introduces more energy into the system. This increases the average kinetic energy of the reacting particles, which in turn increases the likelihood of collisions between reacting particles.

  2. Chemistry report - In this experiment, it is a redox titration method to standardize ...

    ion is nearly colorless, the endpoint in this experiment is determined by the appearing of the light pink in the solution. The redox reaction of this experiment is represented by the following overall ionic equation: 5Fe2+ +MnO4- + 8H+ ? 5Fe3++ Mn2+ + 4H2O In order to obtain the amount of potassium manganate(VII)

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