• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month
Page
  1. 1
    1
  2. 2
    2
  3. 3
    3
  4. 4
    4
  5. 5
    5
  6. 6
    6
  7. 7
    7
  8. 8
    8
  9. 9
    9
  10. 10
    10

How does changing the concentration of hydrochloric acid effect the rate of reaction between hydrochloric acid and magnesium ribbon ?

Extracts from this document...

Introduction

How does changing the concentration of hydrochloric acid effect the rate of reaction between hydrochloric acid and magnesium ribbon ? I plan to investigate the effect the concentration of acid has in the reaction between dilute hydrochloric acid and magnesium ribbon. I will measure the rate of the chemical reaction between the hydrochloric acid and the magnesium ribbon. The rate of a chemical reaction is a measure of how fast the reaction takes place. When a reaction takes place the outer-shell of the atom will loose or gain an electron to become stable in doing this the outer shell we become full or in some case electrons can be shared to make the atoms stable. Some reactions happen rapidly this means the reaction is completed in a short period of time other reaction happen slowly and are completed in a longer period of time. Some reactions are very fast, for example: - The reaction time of potassium (k) in hydrochloric acid is very rapid where as the reaction time of potassium (k) in water is still fast but a lot slower than in hydrochloric acid. In this investigation I will test different concentrations of hydrochloric acid reacting with magnesium. To do this I am going to have to set up my equipment to perform the experiment. I will first of all fill a bowl and a 100cm cubed measuring cylinder with water. I will tip this measuring cylinder upside down in the bowl of water so that it does not loose any of the water. ...read more.

Middle

Graph here Experiment 1 Time (sec) 0.2 Molar 0.5 Molar 1.0 Molar 1.5 Molar 2.0 Molar 10 0 3 10 18 40 20 1 3 21 30 44 30 1 5 30 34 44 40 1 8 38 41 45 50 2 9 40 43 45 60 2 10 42 44 70 2 11 43 80 3 13 44 90 3 14 100 3 15 110 3 16 120 4 18 130 4 19 140 5 20 150 5 21 160 5 22 170 5 23 180 5 25 190 6 26 200 6 28 210 6 29 220 6 30 230 6 31 240 6 32 Experiment 2 Time (sec) 0.2 Molar 0.5 Molar 1.0 Molar 1.5 Molar 2.0 Molar 10 0 2 12 19 32 20 0 3 20 29 41 30 1 4 30 41 42 40 1 5 37 42 42 50 1 6 41 43 42 60 1 6 44 45 70 2 10 45 80 2 11 45 90 2 13 45 100 3 15 110 3 17 120 3 18 130 4 19 140 4 20 150 5 21 160 5 22 170 5 24 180 5 25 190 5 26 200 6 27 210 6 28 220 6 30 230 6 31 240 6 31 Experiment 3 Time (sec) 0.2 Molar 0.5 Molar 1.0 Molar 1.5 Molar 2.0 Molar 10 0 2 10 18 32 20 1 3 21 30 41 30 1 5 30 34 42 40 1 8 37 42 42 50 2 9 39 43 ...read more.

Conclusion

Magnesium oxide - Magnesium oxide was a problem in the experiment I had to remove the magnesium oxide use emery paper it was very hard to see if I had removed all of the magnesium oxide from every piece of magnesium. Weight of magnesium - In my experiment I did not weigh the magnesium instead I measured it by length. If I had weighed it I would be able to make the sure the mass of the magnesium was the same each time so there were the same number of magnesium atoms for the number of collisions with the hydrochloric acid. My results are correct, I know this because my results support my prediction which I based on known scientific knowledge. I have studied my results to try and find any anomalies that would affect my averages but I have not found any this indicates the good accuracy of my experiments. My evidence is reliable enough to support a firm conclusion, this is because I performed three repeats for each condition all which come out with similar results and no anomalies as well as this my prediction was accurate. As well as this the results coincide with other experiments, which have been performed by professional scientists. I could perform additional experiments changing different factors I could use different acids and different alkaline metals, I could also use different concentrations of acid. I could perform the experiments at different temperatures. I could also perform more repeats of the experiment I have already been doing. Gary Lester 11 G ...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 Aqueous 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 GCSE Aqueous Chemistry essays

  1. Marked by a teacher

    To investigate the effect of temperature on the rate of reaction

    4 star(s)

    This is because this experiment involves reacting the HCL with CaC03 and then calculating the volume of carbon dioxide that is given off. I will be monitoring the volume of gas produced every ten seconds and recording that volume at that time.

  2. Marked by a teacher

    To see how the concentration of acid, reacting with potassium carbonate, affects the rate ...

    4 star(s)

    This is a table of all the gradients I have collected: Concentration of solution (M) Initial rate of reaction (cm3 per second) (3d.p) Amount of water added to the acid (cm3) 2.00 1st try 1.174 0 2.00 (repeat) 1.559 0 1.60 1.333 5, 1.14 1.600 15, 1.00 0.825 20, 0.67 0.683 40, 0.50 0.750 60, 0.40 0.658 80.

  1. The effect of Acid Rain on Seed Germination.

    At 20% the cress length drops for 5.62mm to 1.19mm, this suggests that the pH dropped and twice as many enzymes were denatured. The graph is not directly proportional because the cress seeds were either affected badly or affected barely, there weren't really any middle stages unlike on my first graph.

  2. Rates Investigation - Hydrochloric Acid and Magnesium Ribbon.

    This will be for both experiments. Plan of Preliminary experiment - Diagram What my results table is base on Volume of Acid (ml) Volume of Water (ml) Concentration of Acid 10 0 2.00 9 1 1.80 8 2 1.60 7 3 1.40 6 4 1.20 5 5 1.00 4 5 0.80 Equipment Hydrochloric Acid Water 10ml

  1. Rate of Reaction CW

    I will make sure to start the stop clock at the exact moment the magnesium drops into the sulphuric acid as the reaction will tart then.

  2. Rates of Reaction

    equation is a differential equation, and it can be integrated in order to obtain an integrated rate equation that links concentrations of reactants or products with time). It can elucidate further by the collision theory, which was explained prior to this.

  1. What effects the rate of a reaction

    + 2HCl (aq) � MgCl (aq) + H (g) Theory When a metal reacts with an acid it releases a gas. This is because the acid usually includes a mixture of a gas and liquid. So when a metal is reactant with it combines with the liquid pushing and creating

  2. Rate of Reaction

    If a lot of heat is applied to the molecules then they will have a greater amount of energy, which will increase the speed they travel at. The greater the speed of the molecule the more violently it will react when it comes into contact with other molecules and also the frequency of collisions will be far greater.

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