• 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 experiment is to investigate the factors affecting Copper Plating and the work of Michael Faraday.

Extracts from this document...

Introduction

An Investigation on Electrolysis Contents: Aim: 3 Prediction: 3 Apparatus: 3 Fair test: 4 Method: 4 Diagram: 5 Results: 5 Conclusion: 7 Evaluation: 7 An Investigation on Electrolysis Aim: The aim of this experiment is to investigate the factors affecting Copper Plating and the work of Michael Faraday. Prediction: I predict that during the experiment, the copper plating on the negative side will decrease by losing electrons in mass whilst, the copper plating on the cathode side will increase in mass by gaining electrons. I predict that the mass of metal deposited will be directly proportional to the time and the current. I also therefore predict that if I double the time of the experiment, I will therefore be doubling the charge. This statement can be supported by both of Faraday's Laws. Faraday's First Law of electrolysis states that: "The mass of any element deposited during electrolysis is directly proportional to the number of coulombs of electricity passed" Faraday's Second Law of electrolysis states that: "The mass of ...read more.

Middle

A steady current should flow (0.5 Amps) and the experiment should be stopped every 5 minutes * At these times the current should be switched off and both electrodes should be removed from the solution * The electrodes should then be wiped dry and then weighed * The electrodes should then be carefully weighed and their masses should be recorded * This experiment should be done three times Experiment 2: Mass and Current For this experiment: * Firstly the apparatus is collected and set up * Then, pour 75cm3 of the Copper Sulphate solution into a small beaker * Weigh the two Copper Electrodes, record their masses and place into the beaker containing the Copper Sulphate solution * The electrodes are then connected to the power pack and ammeter. Changing the voltage then chooses the current. * The and the experiment is stopped every 15 minutes * At these times the current should be switched off and both electrodes should be removed from the solution * The electrodes should ...read more.

Conclusion

0.02 15 1.60 0.60 Experiment 2: Result 2 Current Time Cathode electrode Anode electrode 0 0 1.28 1.22 0.30 15 1.40 1.20 0.45 15 1.54 1.18 0.86 15 1.86 0.70 1.04 15 1.98 0.50 Conclusion: In this experiment, I found that my prediction was correct because the mass the cathode electrode that the longer the current is left to flow, the more Copper metal is deposited on the cathode. This gives the indication that the longer the experiment lasts, the higher the charge and therefore, the higher the amount of Copper produced. I am therefore correct in saying that, through this experiment, both of Faraday's Laws Of electrolysis are correct. Evaluation: I feel that this experiment has been very successful. However my results show that it could have been better. The experiment could have been improved if the electrodes had been checked properly. To make the results better, new electrodes should have been used for each experiment. I also think that the same equipment should have been used throughout. ...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 Changing Materials - The Earth and its Atmosphere 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 Changing Materials - The Earth and its Atmosphere essays

  1. The Electrolysis Of Copper (ii) Sulphate Solution Using Copper Electrodes

    Another factor was that when massed there was usually water left on the electrode which hadn't yet evaporated. This was because there wasn't enough time to leave the electrode to dry completely and sometimes there were small amounts of Copper(II)

  2. Investigate the factors that affect the mass of Copper deposited on the Copper Cathode ...

    Using the current 0.4A, an average mass of 0.17g of copper was deposited on the cathode which supports my prediction that the mass of copper would increase with the current and also that the mass of copper deposited on the copper cathode using the current 0.4A is double that deposited

  1. Investigation to show how the amount of electric current affects the amount of copper ...

    Similarly, decreasing the amount of electric current will decrease the amount of copper deposited at the cathode and decrease the amount of copper released from the anode. The scientific explanation for my results is that when an electric supply is connected to the electrolytic cell, electrons flow from the anode to the battery and from the battery to the cathode.

  2. Factors affecting mass of copper transferred in Electrolysis of aqueous copper sulphate

    Fair test To make this a fair test I must make sure that all the variables other than time must be kept the same to keep the results as accurate as possible. To do this I will keep the electrodes the same distance apart through out the experiment so it

  1. Investigating the factors that affect the amount of copper deposited during the electrolysis of ...

    This may suggest that the results were not very accurate. Although both of these results, 0.0315g gained and 0.032g lost were very close, they both lay on very different places on each of the lines drawn. This suggests either error on those two results, or for the rest of them.

  2. Investigating how the amount of copper affects the mass of the cathode

    One Faraday of electricity contains 1 mole of electrons An example for Faraday's second law of electrolysis is during two different electrolysis experiment 1.08g of silver was deposited and 0.32g of copper was deposited.

  1. Investigating one of the factors that affects the mass of copper deposited when copper ...

    minutes as this would also give me a bigger change in mass for every solution, which would make my findings easier to make. Background Knowledge Electrolysis is the decomposition of a liquid substance that conducts electricity. The liquid is called the electrolyte; these are usually ions dissolved in water.

  2. Electrolytic wastewater treatment apparatus

    An electrolytic oxidation apparatus for purifying wastewater by oxidation of water-soluble organic and oxidizable inorganic substances contained therein, said apparatus comprising: an electrolytic oxidation cell, where the cell comprises a stainless steel anode and cathode and contains iron chips, said chips being in electrical contact with the anode and

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