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

Unknown Metals

Extracts from this document...


John Saunders 10R Unknown Metals In this experiment I am going to find out what an unknown metal element is by using any technique I can. Here are some of the techniques and how they work. Displacement Reactions: Using a reactivity series of metals I will drop solid metals into liquid solutions of metals. The more reactive metal will join to the liquid, whereas the less reactive metal will not. If a reaction takes place, the solid will join the liquid and be more reactive than the other metal, which will be left on its own. Eg: K + AgSO4 --> KSO4 + Ag Potassium Silver Sulphate Potassium Sulphate Silver NB Metal will not react with itself. This shows that potassium has displaced silver, because it is more reactive. If the mystery metal was placed in silver sulphate, then we could eliminate some other metals that it could not be. If there was a reaction, then it can only be metals that are more reactive than silver. If there is no reaction, then it can only be metals that are less reactive than silver. I would use different solutions and put the metal in - and see which metals it does and does not react with to see what it is. ...read more.


Gases Released: Similar to the reactions in water or acid, it could react water and acid with the metal and test what gas is given off. Depending on whether it is hydrogen (a lighted splint pops), it is oxygen (a lighted splint glows) or it is carbon dioxide (puts out a lighted splint), we could eliminate metals using this process. Softness: Metals (eg Group 1 metals) are really soft and can be cut quite easily with a knife. If a knife can cut the mystery metal, then it will probably be a Group 1 metal, if it will not cut easily then it will probably be another metal. Unique Properties: This is unusual, but could be a solution for what the metal is. For example, potassium burns with a lilac flame in water and glows incredibly brightly in a flame. These are some unique ways of metals, and metals are identifiable by doing this. Metal Properties: Reactions In H2O / HCl: Metal In HCl In H2O Al Aluminium No reaction at first, vigorous later Hydrogen produced rapidly Cu Copper No reaction No bubbles of Hydrogen No reaction Fe Iron Slow reaction Bubbles slowly produced from iron Rusts very slowly if Oxygen is present Brown hydrated iron oxide produced Pb Lead ...read more.


Lanthanum / Actinium Series Metals: It would be unlikely to be these metals, because these metals are either incredibly rare or man-made in laboratories. It would be unlikely that the school would have these at all, never mind to use in experiments. Overall: Overall, you can't predict at all what the metal is, but I could eliminate some metals it couldn't be. It shouldn't be group I or II metals. I think these highly reactive metals wouldn't realistically be used in some of these experiments. These metals could explode, and the school would want to put our safety before an experiment. Also, it shouldn't be an unreactive or not very reactive metal. If it was, then some of the better experiments for defining one particular metal, such as the reactions or the gases released, would be useless. The metal would probably be a transition metal. Whilst these are hard dense metals, they do react with hydrochloric acid and water, but not so violently they could damage our health. The block on the periodic table also is the largest, so it would be the most varied choice of metals for the metal to be. This, to a certain point, is my prediction for the outcome. For it to be a transition element. 5 1 ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Classifying Materials 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 GCSE Classifying Materials essays

  1. Marked by a teacher

    The differences between the Alkali metals and the Transition metals.

    3 star(s)

    The Haber process uses Hydrogen and Nitrogen to make ammonia. Two of the uses of ammonia are Nitric acid and Fertilizer. Iron is introduced into this process as a catalyst to speed the reaction up. If there was no iron to act as a catalyst then the heat of the

  2. The rates of reaction between CaCO3 and HCL

    East 100g 44g 5g 0.37 X20 x20 100g 7.4g 7.4 44 x 100 = 16.81818182% = 16.8% (1 dp) These calculations give a % purity so the higher the % the purer the limestone. Form the calculations and graph west is the purest as more CO2 was produced form the reactants.

  1. Rate of reaction of hydrochloric acid on magnesium.

    is correct to the correct to the right measurement acquired, carry this out on a balanced surface for better accuracy. Step 3- Then dilute the water with the HCl into one measuring cylinder. The total should be 100cm3; this should give the required molarity.

  2. An Investigation Into How the Mass of Zinc Effects the Heat Change In the ...

    As a good set of results have been obtained from the experiment, I think that I have chosen an appropriate range of measurements. To improve my results if I were to the experiment again in the future, I would measure out the volume of copper sulphate solution more precisely, the

  1. Redox reactions and the halogens.

    of a substance, symbol ?H?c is defined as the enthalpy change that occurs when one mole of the substance undergoes complete combustion under standard conditions The overall energy change in going from elements to combustion products must be the same whatever route.

  2. Our experiment consisted of two samples of water containing unknown substances, and our objective ...

    now since it has been heated for a couple of minutes in blue flame. The evaporation process takes place when the liquid molecules gain enough kinetic energy to overcome intermolecular forces (forces between molecules). 7. When there is nothing on the scales, it should display '0.00g'.

  1. Affect of concentration on reaction

    quickly at first, then it gradually slowed down and if the experiment was carried out longer, the reaction would have stopped. This is because when calcium carbonate was first added to acid, it had the most surface area, so it reacted fastest at start.

  2. Rate of reaction of different concentrations of sodium thiosulphate.

    The preliminary experiment had been done as a whole class. The preliminary experiment was done so everyone knows how to carry out each stage in the experiment. Firstly we had to layout a detailed and appropriate table to record the results in.

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