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

By doing this investigation I want to find out what effect different temperatures have on the rate of reaction between magnesium and hydrochloric acid.

Extracts from this document...


Introduction to Rates Rate is a measure of how fast or slow something is. It is a measure of the change that happens in a single unit of time. Rates can be measured in 2 different ways: (a) The rate of disappearance of a reactant. (b) The rate of appearance of a product. Some reactions are very fast and others are very slow. Plan By doing this investigation I want to find out what effect different temperatures have on the rate of reaction between magnesium and hydrochloric acid. The word and symbol equations for this reaction is as below: Magnesium + Hydrochloric acid = Magnesium chloride + Hydrogen Mg + 2HCL = MgCl2 + H2 There are a number of factors, which may influence the investigation in various ways, these include: * Type of Magnesium used * Temperature of reaction * Concentration of Hydrochloric acid * Concentration of Magnesium * Amount of Magnesium * Amount of Hydrochloric acid (volume) * Addition of a catalyst * What scale of reaction * Surface area of Magnesium * Whether to stir the mixture during the reaction or not These factors are all very important because they all can affect the rate of the reaction in different ways. ...read more.


We are also working with a Bunsen burner; we need to be aware of it and to make sure that we leave it with an orange flame so that others can see it. We also need to take into consideration all of the other basic lab safety precautions. Method 1) Measure out 20ml of acid and put into the boiling tube. 2) Set-up apparatus as above and heat the beaker and its contents to the desired temperature. 3) When the acid is at the correct temperature lift it from the water and place into the test tube rack. Carefully weight out 0.1grams of magnesium using the weighing boat and the top ban balance. 4) Add the magnesium into the boiling tube containing the acid. 5) Start the stopwatch and watch until all the effervescence has stopped. 6) Stop the stopwatch when the effervescence has stopped. 7) Record result. 8) Repeat another two times at the same temperature, and then move on to the next temperature. Results As we do the investigation the results table, which we will draw out before we start, will be filled in as we collect the data. Appropriate graphs will be drawn later on as a way of analysing our data. ...read more.


*Use a water bath, which has a thermostat, which would have been easier to keep the acid at a constant temperature. *We could also use a larger boiling tube because as we added the magnesium some of it got stuck to the sides of the tube, therefore not reaching the acid. Because of this sometimes not all the magnesium reacted with the acid. *More repeats could be carried out to qualify the findings. These could be done under different conditions to see how the reactions react under a colder or hotter environment. *I could also use a different form of magnesium i.e.) powdered magnesium, which would have a different surface area. *I could also investigate whether or not the rate of reaction will decrease as the temperature decreases. *I could also investigate whether the same patterns occur if I used a different acid and a different metal. I could further my investigation by investigating how other factors influence the rate of reaction i.e.) Concentration, catalysts etc. I found that all of my results were accurate and I found that all of the results fitted in with the patterns shown by the graphs. In conclusion from this experiment I have found that the rate of a reaction increases as the temperature increases. ...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. Marked by a teacher

    For my experiment I am finding out the effects on the reaction rate when ...

    3 star(s)

    You can check to see whether the product is hydrogen or something different by collecting the gas in the test tube by covering the opening of the test tube with your thumb. Then put a burning splint into it, if it goes out then there is carbon dioxide produced.

  2. Free essay

    Close Your Eyes

    Where's Danny go-" Dougie walked into the front room and stopped talking when he saw me crying. He ran up forwards and put his arms around me. "Louise, what happened?" I didn't answer, just stood there with my arms around him sobbing into his shoulder.

  1. Investigate various ways of increasing the rate of a chemical reaction and evaluate which ...

    The dependent variable is the one that depends on the control and independent variables. Since the control is to be kept constant, any effect on the dependentvariable will therefore be due to the independent variable. Throughout our investigation the variables shall be: Control variable: Volume of Hydrochloric acid (15cm3)

  2. An Investigation into the factors affecting the rate of reaction between magnesium and hydrochloric ...

    Analysing Evidence First three graphs were drawn (one for each time the whole experiment was carried out). So that the graphs did not become over crowded the curves were drawn on separate pieces of see through OHP film and overlaid each graph.

  1. Find out how the rate of hydrolysis of an organic halogen compound depends on ...

    This means that the reaction proceeds more quickly. The enthalpy change, ?H, is the same for the catalysed and uncatalysed reactions. Figure 20 shows the enthalpy profile for a catalysed and uncatalysed reaction. Figure 20 Catalysts and equilibrium: Catalysts do not affect the position of equilibrium in a reversible reaction

  2. Study the reaction kinetics and find out evidence about the mechanism between the reaction ...

    We can see if ?H is negative, hence energy lost, so the product is more stable, means the reaction would happen. Ref, 'Chemistry in context' Integrated Rate Laws The rate of reaction is proportional to the rates of change in concentrations of the reactants and products; that is, the rate is proportional to a derivative of a concentration.

  1. What factors effect the rate of a chemical reaction?

    To carry out the experiment we used a gas syringe and timed how long it took for the syringe to be filled. The volume of the syringe was one hundred cm�. We reacted both of the reagents in a conical flask and measured the mass of the chips on a electronic balance to get a fairly accurate reading.

  2. Determine the effect temperature has on the rate of reaction.

    Other methods are either difficult to set up or the apparatus for them is not available. Method 1 * Place in excess of 0.1g of magnesium in the side-arm test tube and have ready 10cm� of Hydrochloric acid. * Put the acid into the test tube and place bung over it to restrict any hydrogen gas escaping.

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