• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month
Page
  1. 1
    1
  2. 2
    2
  3. 3
    3
  4. 4
    4
  5. 5
    5
  6. 6
    6
  7. 7
    7
  8. 8
    8
  9. 9
    9
  10. 10
    10

The effect of different concentrations of Iron (III) Chloride with the mass loss of copper.

Extracts from this document...

Introduction

The effect of different concentrations of Iron (III) Chloride with the mass loss of copper. The aim of my investigation is to study the effect of the rate at which copper is fixed by different concentrations of Iron (III) Chloride. I will place copper strips in varying concentrations of Iron (III) Chloride, and then record results and interpret them. The reaction above is used in technology. Printed Circuit Boards are thin, flat boards made from non-conduction materials eg.plastic. Chips and other components are mounted on to them. The PCB starts off as a sheet of plastic coated with a layer of copper. It is placed into a tank containing a concentrated solution of Iron (III) Chloride to remove the excess copper and the protected copper, which remains become the PCB tracks. This is the formulae of the reaction which takes place between copper and Fe3+ ions shown below: Cu (s) + 2Fe3+ (aq) Cu2+ (aq) +2Fe2+ (aq) It is a REDOX reaction. This means that the copper is reduced as it has lost 2 electrons. It becomes a Cu2+ ion . The iron is oxidised, as it has gained 2 electrons and therefore it becomes a Fe2+ ion as demonstrated below. Cu - 2e- Cu2+ Fe3+ + e- Fe2+ I have studied kinetics in detail. And I have 6 different experiments which can all be related to our coursework. ...read more.

Middle

I am suggesting this because when I completed the Magnesium and Hydrochloric acid kinetics experiment, I observed that as the concentration of the HCL increased; the rate at which the magnesium dissolved also increased. Therefore, I think the same will happen with the Iron (III) Chloride and copper. Apparatus To complete the experiment I will need the following apparatus. o a strip of copper o A ruler o A scriber and scissors to cut the strip o Two burettes (one with 2M chloride and one with distilled water.) o A test tube to hold the solutions o A flushing beaker to flush out the solution o A squeeze bottle to clean the copper strip of the solution and stop the reaction. o A stop clock- to time the reaction. o A test tube to carry out the experiment o A balance to measure the mass of the strip of copper o A small beaker to mix each dilution o A bottle of iron chloride o A bottle of distilled water In order for me to successfully complete the experiment, I will need to: * Measure and cut the strip of copper. * Weigh the piece of copper, for the initial mass * Set up two burettes, on with iron chloride, and the other with distilled water. * Put 50cm of iron chloride into the test tube. ...read more.

Conclusion

As you can see, as the concentration increases, so too, does the mass loss. I think this is because there are more collisions happening with Iron Chloride and copper particles. If the concentration is greater, then more ions are present hence more collisions. Consequently, a faster reaction rate. Evaluation When I completed my graph, I realised that I did not have any anomalous results. I feel this is because we used accurate measures and followed the method meticulously. However as in all experiments, there were things that could be improved. * I realised that we had cut our strips from the same sheet of copper to a standard size. Our aim was to create identical strips so as to ensure a fair test but when we weighed the strips, they were different weights, which means that they were not exactly the same size and so did not have exactly the same surface area. * Another problem is cross-contamination of the test tube. If some of the previous solution remains in the test tube, then the next solution could be affected and the change in mass will be greater or less than it should be. * I also think that perhaps, the two strips of copper were not put in at the exact same time therefore this could cause anomalies. In conclusion, I have realised that my theory was in fact correct. The concentration of a solution plays a very important role in the rate of reaction as they are directly proportional to each other. ...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 Patterns of Behaviour 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 Patterns of Behaviour essays

  1. Free essay

    Close Your Eyes

    So when I kissed her for the second time and she kissed back I just let it happen. It's only natural. I wasn't going to stop something that I had craved so much in the past few months. So here we were, on the sofa, just making out.

  2. The aim of the investigation is to examine the kinetics involved in the reactions ...

    87 (2dp) The gradient of the graph is a negative number this represents that the reaction is an exothermic one as bonds are being broken. Experiment 1 a (hydrochloric acid) activation energy calculation The following shows the calculation to calculate the activation energy for the reaction between hydrochloric acid and magnesium ribbon: Activation energy =gradient x R (gas constant)

  1. An Investigation of the Effect of Copper Sulphate on Catalase Activity.

    * The fifth contains 0ml of copper sulphate solution and 20ml of water to create a solution with a copper sulphate concentration that is 0% of the first or a 0mol copper sulphate concentration. Lastly, to test whether or not copper sulphate acts as a reversible inhibitor, add five 1cm3

  2. To observe the effect of different concentrations of ferric nitrate on the equilibrium between ...

    In part 2, we will add Potassium chloride to the system in equilibrium and will therefore increase the concentration of Potassium and Chloride ions. However, since the equilibrium is formed between the Fe(SCN)3 2+ complex, I predict that there will be no change in the equilibrium since no stress will be applied.

  1. The Effect of Catalase in the Breakdown of Hydrogen Peroxide

    may further prove that the higher the concentration of catalase; the longer the reaction can occur, thus; a faster rate of reaction. Had I continued after 10mins to record the readings with a burette that held more than 50ml, I believe that the reaction would have stopped to stay stationary is at the point the reaction is complete.

  2. What factors affect the activity of urease? What are the kinetics of the urea-urease ...

    volumetric flask and filled up to the bottom of the meniscus with the addition of distilled water. The Urease solution is very difficult to dissolve and needs intensive stirring using a magnetic stirrer. Calculations 2M Urea - 80cm3 + 1% Urease - 20cm3 Total - 100cm3 In 80cm3 of 2M Urea, No.

  1. Investigation of Electrolysis of Copper (II) Sulphate Solution Using Copper Electrodes

    The equipment used 4. The amount of magnesium used. In this experiment, I am looking at how increasing the temperature can affect the rate of reaction of magnesium. I will measure this by measuring the Hydrogen given off each test. I will change the temperature of the Hydrochloric acid at 5 different temperature points while keeping everything else the same.

  2. Health Implications of eating Fat

    This means that they have strong forces betweens them which makes them solid. The reason for Polyunsaturated oils being mostly liquids ore runny at room temperature is because instead of having single bonds in between the carbons like saturated fats/oils, they have double bonds which cause bends into the molecules;

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