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

An Experiment to Determine the Atomic Mass of a Metal X.

Extracts from this document...


An Experiment to Determine the Atomic Mass of a Metal X Aim The aim of this experiment is determine the atomic mass of the unknown metal X. We will do this by following the instructions laid out on the method sheet. We also hope that by determining the atomic mass and referring to the periodic table we will be able to actually to determine which element metal X actually is. Hypothesis We cannot really have a hypothesis for this experiment, but I think that it is worth saying that the metal X looks like magnesium ribbon and we might expect that metal X to will have an atomic mass of 24.3 as this is the atomic mass of magnesium. Safety Precautions As there was HCl involved in this experiment and HCl is corrosive we must be sure to wear safety goggles at all times throughout the experiment. ...read more.


These results are very surprising indeed as I thought the metal was magnesium. I still think it is though and I think I must have made some errors while carrying out the experiment or making my calculations. It is strange though that all my results were anomalous. Evaluation and Conclusion In this experiment I think that there were many errors, otherwise my results may not be so strange. Even though I have no evidence that Metal X was magnesium, I do believe it to be and magnesium has an atomic mass of 24.3. My results show very different patterns and they are far too different for me to call them reliable. I thin that the quality of my results is very poor indeed. As for anomalies, I think that all my results are anomalies, but I don't know how this came about. There are certain errors within the experiment that may partially account for the unreliable results. ...read more.


Errors This experiment has many errors and I some of these may be able to account for my anomalous results. Firstly some gas may be given off before I have had the time to place the cork in the flask. This would mean that I lose some volume of gas. Also the magnesium may have been impure and the oxide layer may have taken some of the mass. I also found that when I was trying to weigh my magnesium the balance was wandering and I had to pick a reading and this may not have been the most accurate. Also when the bung is pushed into the flask it may displace some air and create an error. Further Work If I was going to do further work I might use some different metals. I might also use different acid concentrations and different acids altogether. Also I might like to find the relative atomic mass of a metal using a more accurate method and achieve mor3e accurate results. I would use the method of some kind of electrolysis. ...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

    Chemistry revision notes. Atomic Structure and Bonding, Electrolysis, Acids and Alkalis.

    5 star(s)

    + Bromine (at the anode) Aluminium Oxide (molten) = Aluminium (cathode) + Oxygen (anode) With aqueous electrolytes, the electrolyte is also split up, but if the metal is reactive, then hydrogen from the water is produced at the cathode in place of the metal. e.g.

  2. Marked by a teacher

    In this CDA I will write about how plastic bags are made, why plastic ...

    backed this up. They said 'Compared to paper grocery bags, plastic grocery bags consume 40 percent less energy, generate 80 percent less solid waste, produce 70 percent fewer atmospheric emissions, and release up to 94 percent fewer waterborne wastes'. Also, plastic bags are much cheaper, if shops were to use alternative packaging, the

  1. Rate of reaction of hydrochloric acid on magnesium.

    water molecules in the solution, which had prevented the reacting particles to collide. This is the reason for the reaction to be slow as the collisions occurred less frequently as shown by the straight line on the graphs. The activation energy has to be kept at a minimum to make

  2. Burning of magnesium metal

    Brittle (they break or shatter when hammered) Conduction of heat Good Poor (they are insulators) Conduction of electricity Good Poor (they are insulators, apart from graphite) Magnetic material Only iron, cobalt and nickel None Sound when hit They make a ringing sound (they are sonorous)

  1. Gold. For thousands of years, gold has been regarded as the finest and ...

    Percentage of gold content (%) Fineness (fine) 9 37.5 375 14 58.5 585 18 75.0 750 22 91.6 916 24 ?99.0 ?990 TABLE 2 shows the relationship between the purity of gold and international standards for that purity: Purity (in terms of carats) Percentage of gold content (%)

  2. Classify and identify different polymers to determine their physical properties and uses.

    Unlike thermosetting polymers, thermoplastic polymers have molecules that are tangled together and are not cross-linked. When they are heated, they slide past each other easily, allowing the polymer to melt and re-set. This experiment proved that not all the polymers tested belonged to the same group, therefore, showing that the

  1. The role of mass customization and postponement in global logistics

    The ability to remain economic while responding to/absorbing change and fluctuations in customer demand with regards to the nature, volume and timing of production outputs; included are flexibility of tools, processes, products, routings, volume * Producing in volume, but at the same time giving each individual customer something different according to his or her unique needs.

  2. The relative atomic mass of lithium

    The apparatus is set up as shown. Then exactly 100.0 cm3 of distilled water. 2. a mass of about 0.10g of lithium is weighted, then the exact mass of lithium is recorded in the appropriate format 3. The stopper is removed. And the lithium is added quickly replacing the stopper fast.

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