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

How factors influence the energy change when metals are added to a metal salt solution?

Extracts from this document...

Introduction

How factors influence the energy change when metals are added to a metal salt solution? Skill P : Planning Experiments Aim: My aim is to see what factors influence the energy change when metals are added to a metal salt solution. Introduction: The energy released when one metal displaces another can be used in industry, for example in the reaction of aluminium with iron oxide to weld rails together. Your task is to devise a plan to show how the temperature rise, and hence the energy cange, is affected by adding different metals to copper sulphate solution. A suitable metal woould be iron, which reacts according to the equation: Fe(s)+CuSO4(aq)?FeSO4(aq)+Cu(s) Prediction: In my experiment, I can predict that when we add different metals to the Copper Sulphate liquid in forms of powder, the temperature will rise when the reaction takes place, in the polystyrene cup. The more reactive the metal the more the temperature produced, so the more energy will be given off at the end of the experiment. Our expeiment was bast around the ractivity series: Calcium most reactive Magnesium Aluminium Carbon Zinc Iron Tin Lead Hydrogen Copper Silver Gold Platinum least reactive For this experiment, I chose to use six different metals, which are in bold writing in the reactivity series, the more reactive the metals are the more heat will be produced, ...read more.

Middle

Independent variable: My independent variable is the different metal we use, as the metal is higher in the reactivity series the result of temperature will change. I will change my independent by changing the metal, after having weighed it. Control variables: My control variables are temperature, correct mass of metal, what solution I put for the metal to react with. All these do not change threw out my experiment. I kept these variables by staying in the same room, keeping my experiment in one fixt place. Other wise the other control variables were very easy to keep constant. Range: My range varies from most reactive, which is magnesium to one of the less reactive, which is lead. Passing threw Aluminium, Zinc, Iron and Tin. Reliability: My results are as reliable as we could get them in the amount of time we were given to do the experiment. I repeated each of my experiment three times with the same concentration of gas and the same control variables. My results varied +- 0.1 degrees Method: Equipment used: -A polystyrene cup -2?100cm3 cylinder to measure the copper sulphate -Metals: 0.56g of Iron 0.65g of Zinc 2.07g of lead 0.27g of Aluminium 1.19g of Tin 0.24g of magnesium -500 ml beaker to place the polystyrene cup -500 ml beaker to place the copper sulphate -A thermometer to measure the temperature of the liquid Safety: Before starting there are a few safety aspects, which we have to be careful of. ...read more.

Conclusion

35*0.8*4.2=117.6/0.005=23520 KJ/mol Magnesium: When 35g of copper sulphate with lead the temperature rises by 8.8oC so if water is heater up at 4.2J per gr per 1oC 35*4.2*15=2205.6/0.005=441000 KJ/mol Part A:Analysing evidence and drawing conclusions In my prediction, I predicted that the highest the metal is in the reactivity series the more energy will be given off, the higher the tempeature will be after the mix between copper sulphate and the different mtals. But when doing this expewriment, I found out that eventhough Aluminium is place quite high in the reactivity series it reacted less with the copper sulphate solution then iron did with the copper sulphate solution. This could be explained by saying aluminium is oxidized, at the start the aluminium has a layer of oxide protecting it from anycorrosion or type of reaction. This layer of oxide is so stable that it will not react with anything. Magnesium reacts because the ferther the electrons are from the nucleus the faster they will be lost, so the more energy will be given off. In my experiment the most reactive with copper sulphate solution, was Magnesium then Zinc then Iron then Tin, after that Aluminium and Lead gave off the same amount of energy. This could make us conclud that Magnesium electrons are ferther away from the nucleus then Zinc electrons are away from it's nucleus. ...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. Peer reviewed

    What is a metal ore?

    4 star(s)

    Copper 99.99% pure can be produced this way and is known as Cathode Copper. Pure Copper is ductile and weak with a density of 8930 kg/m3 and a melting point of 1084 degrees C. It has good thermal and electrical conductivity and is readily hot or cold worked.

  2. The aim of this experiment is to determine the order of the reactivity series ...

    This can also be called the input variable. The dependent variable is the factor that is measured. In this experiment I am measuring the amount of carbon dioxide given off by the metal carbonate as it is decomposed. This is also the output variable.

  1. Investigating The Reactivity Of The Metals Iron, Magnesium, Zinc, Copper And Calcium And Their ...

    Calcium (�C) Magnesium (�C) Iron (�C) Zinc (�C) Copper (�C) 15 32�C 28�C 21�C 20�C 21�C 30 35�C 32�C 21�C 20�C 21�C 45 37�C 34�C 21�C 21�C 21�C 60 48�C 34�C 21�C 20�C 21�C 75 38�C 35�C 20�C 20�C 20�C 90 37�C 35�C 20�C 20�C 20�C 105 37�C 35�C 20�C 20�C 20�C 120 36�C 34�C 20�C 20�C 20�C

  2. Thermal Decomposition Of Metal Carbonates

    So instead of using 125gms I will use 1.25gms. I have constructed a table below which clearly shows the way in which I have calculated the mass for each carbonate that I am to use: Carbonate Formula Elements within Atomic mass Number Working Total Divide by 100 Zinc ZnCO3 Zinc 65 65 + 12 + (16�3)

  1. Extraction of Metals.

    In high temperatures in the furnace, more coke is reacted with the carbon dioxide produced, forming CO. C(s) + CO2(g) 2CO(g) The iron oxide is reduced to iron by the carbon monoxide and some coke (due to the heat the iron is molten, and so can be run off).

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

    Another problem was that the rheostat was tricky to handle in that maintaining the same current was difficult. A problem arises from the moment the experiment is begun: the current has to be adjusted to the chosen value.

  1. Thermal Decomposition of Metal carbonates

    the bottom of the reactivity series have a loose bond with their carbonates. Also their atoms aren't stable, meaning they have less than 8 electrons on their outer shell. They therefore have to either loose the electrons on the outer shell (This usually happens if there is on electron on the outer shell).

  2. Alternative Energy Sources

    4 The statistics above show us that the situation is indeed complex, where there are energy savings in one area which are balanced by losses in the other end.

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