• 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...

Introduction

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.

Middle

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.

Conclusion

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)

    It should be, moreover, noticed that among ethanol molecules, hydrogen bonds can be present due to the presence of lone pair electrons on O attached to H: However, among cyclohexane molecules, there is only relatively much weaker van der Waal's force but no H-bond: After mixing these two substances, hydrogen

  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 how concentration affects rate of reaction

    x 79.9 = 79.9 O3 = 3 x 16.0 = 48.0 RFM = 167 grams needed = (0.01 x 167 x 250) 1000 = 0.4175g dissolved in enough distilled water to make 250ml of solution. 1M Sulphuric acid: H2SO4: H2 = 2 x 1.0 = 2 S = 1 x

  2. Free essay

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

    This was used because it was the most practical and convenient. * Boiling tubes and rubber bung.

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

    Sieve Trays: Have a greater liquid/vapour handling capacity than shower trays, but not as great as valve trays. Valve Trays: Has greatest liquid/vapour handling capacity of all the trays. Shower Trays: Least effective at handling liquid and vapour. e plate efficiency Bubble Cap: Bubble cap trays are not very efficient, about 70% as efficient as sieve trays and valve trays.

  2. How do we make Magnesium and Hydrochloric acid react faster?

    Reliability and accuracy: To make my results reliable, I have repeated each experiment three times. This will give me an indication of any anomalous results. I intend to find the range of my results to find out their reliability. To make my results accurate, three people from the group measured

  1. Neutralization investigation

    The substances involved cause the reaction chemically and the physical effects of the indictor do not in any way affect the results. So the only the difference between the indictors is how accurately they show the reaction. I will use orange methyl indicator as an indicator for this investigation because

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

    nitrate, Co(NO3)2.6H2O, solid, aqueous o Risks: HARMFUL, OXIDISING, HARMFUL if swallowed, causes sensation by inhalation and skin contact, strong oxidising agent o Dangerous with: Flammable materials o Disposal: Dilute with water, pour down foul-water drain o Nickel (II) chloride, NiCl2.6H2O, solid, aqueous o Risks: HARMFUL; HARMFUL if swallowed; may cause

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