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

Does the amount of hydrogen gas formed in the below reaction depend on the amount of magnesium used?

Extracts from this document...


Aim: Does the amount of hydrogen gas formed in the below reaction depend on the amount of magnesium used? Prediction: I predict that as the amount of magnesium used increase, so will the amounts of hydrogen gas produced. I will use the collision theory to explain this. The collision theory involves a chemical reaction taking place between particles when they collide. There are a variety of factors that affect how frequently particles collide, and how successful these collisions are in making a chemical reaction: * Concentration of acid: this is how many molecules are in the acid the higher the concentration the more molecules are in there. When there is a higher concentration the reaction will occur faster because there are more molecules to react with so the reaction takes place more frequently. ...read more.


After setting up the equipment as shown in the diagram, I will pour 10 ml of the sulphuric acid into the side arm flask and then add the piece of magnesium to the acid in the side arm flask and put the bung on the side arm flask. It will be carried out in this order as it was found to be the most efficient in the preliminary work. I will then collect the hydrogen gas in the measuring cylinder. To make sure it is a fair test I will keep certain factors constant. The factors I will keep constant are the same amount of acid (in ml), volume of acid, type of acid and concentration of acid. Also I will wash all equipment to stop contamination and I will not shake the flask because I cannot ensure that I will shake the flask the same way and amount each time, which will influence the results. ...read more.


You can see from my graph that no anomalous results were taken which shows that my results were fairly accurate because I carried out the experiment to the guidelines laid out in my plan to ensure a safe and fair test. Evaluation: My experiment was not as accurate as it could have been which slightly lowers the reliability of my results. To make my experiment more accurate I could find a more accurate way of cutting the magnesium into strips or using the weight of magnesium instead of length. Also I could develop a way of releasing the magnesium into the acid without losing any gas from the flask. Also I could of changed the collecting method and used a gas cylinder which would be more accurate. A way I could further this experiment is by changing the other variables, such as the type of acid, the strength of acid or the volume of acid. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Physical Chemistry 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 AS and A Level Physical Chemistry essays

  1. Marked by a teacher

    Experiment investigating hydrogen bonding in different chemicals.

    5 star(s)

    transfer process and the experiment should be done as fast as possible. 2.> The ethanol - cyclohexane mixture should be stirred gently & carefully with the thermometer, to ensure heat is evenly distributed. Answer to Study Questions What (theoretical) assumption(s)

  2. Mole Concept in Gas and Electrolysis

    3I2 + 3H2O Equation III 8.> The mixture is then titrated immediately with standard Na2S2O3 solution to find out the number of moles of excess I2. Hence, the mass of ascorbic acid reacted can be calculated. (c) KCl http://hk.geocities.com/fatherofchemistry Results Mass of NaIO3 : 0.63 g ?

  1. Investigating the Rate of the Reaction between Bromide and Bromate Ions in Acid Solution

    /s /10-3 s-1 1.25 130.67 7.65 1.00 140.67 7.11 0.75 169.67 5.89 0.50 237.00 4.22 0.25 429.67 2.33 0.00 - 0.00 (Table 3.5.2) The graph of against concentration of bromate ions (graph 3.5.2) is on page 35. It also shows clearly a linear correlation exists between the initial rate of the reaction and the concentration of bromate ions.

  2. Investigating how concentration affects rate of reaction

    n/a Beakers Used for reaction to take place in. 250ml White tile Allows easy observation of colour change against a white background. n/a Magnetic stirrer Allows me to concentrate on observing the colour change alone, rather than having to conduct stirring and observe colour change at the same time.

  1. Free essay

    Experiment. Is the order of reaction affected if the acid is monoprotic or diprotic?

    changing the concentration has no effect on the rate of the reaction and therefore the half-lives will not be increasing. The units of the rate constant in a reaction that is zero order would be mol dm-3 s-1. Example of a zero order reaction.

  2. Describe the construction, operation and application of distillation equipment used in industry

    Shower Trays: Lightest of all tray types, no valves or caps to increase weight and large holes which also lower the weight. b cost Bubble Cap: Bubble cap trays have very few advantages. A major disadvantage when cost is involved is that they are expensive to purchase due to the

  1. Investigating the effect on the rate of reaction when changing the acid that is ...

    The maximum volume of gas given out was quite low, this is due to the fact that all of the acid has been used up. It was also clear that this reaction was exothermic from this reaction. The conical flash became hotter when being held.

  2. Neutralization investigation

    Equipment (with labelled diagram) The equipment I will use: Burette to 50cm3, pipette to 25cm3, clamp, hydrochloric acid with concentrations of 0.1M, 0.5M, 1M, 1.5M, 2M, sulphuric acid with concentrations of 0.1M, 0.5M, 1M, 1M, 5M, 2M, methyl orange indicator, beaker up to 100ml, funnel, clamp, distilled water in plastic bottle with tube.

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