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

Find out what changes the speed of the reaction between marble chips and acid.

Extracts from this document...

Introduction

The aim of this experiment is to find out what changes the speed of the reaction between marble chips and acid. In this experiment, there are several variables that could be changed or kept the same. The list of variables is: * Volume of acid * Temperature of acid * Size of the marble chips * Mass * Concentration of acid to water. Out of these five possible variables, I will be changing the concentration of acid to water. I will keep the other four variables the same. The total volume of solution will be 50cm3 for each experiment. The temperature of the acid and water will both be at room temperature. The size of the marble chips will be small for each and every experiment. My prediction is that the marble chips will react faster if there is more acid and less water. Therefore if there is a higher amount of water in the solution, then the reaction will go slower. I think this will happen because of the collision theory. The collision theory says that particles will react if they collide with enough energy. ...read more.

Middle

List of equipment: * Weighing scales * 50g Small marble chips * Hydrochloric Acid * Water * Measuring cylinder * Beaker * 100cm3 Conical flask * Delivery tube * Stopwatch * Test tube * Trough Method: 1. Set up the experiment as shown before 2. Weigh the marble chips, it should be 5grams for each experiment 3. Mix the right ration of acid to water in a separate beaker 4. Mark on the test tube where 50cm3 is 5. Pour the solution and marble chips into a conical flask and put the cork with the delivery tube coming off of it onto the mouth of the conical flask 6. Start the stopwatch 7. Watch to see when the gas fills the tube forcing the water to go below the line on the test tube 8. Stop the stopwatch 9. Record the results 10. Repeat the whole experiment 4 other times, but changing the ratio in the solution for each time. On the following page, you will find our preliminary results. Concentration Time taken 30cm3 of acid, 20cm3 of 56.75 Water. 35cm3 of acid, 15cm3 of 14.54 Water. ...read more.

Conclusion

My prediction was correct in saying the higher the amount of acid in the solution, the shorter time it will take to produce a certain amount of carbon dioxide. To compare my experiment with other people's results show that our results are very similar. From the graph we can see that it has a resemblance to my prediction graph, this means that my prediction was correct. Evaluation I think that the experiment went very well. I made sure all the things that will keep the experiments fair were in place. To improve the experiment I could have the sample bigger, by doing more experiments and by having more varied solutions. The bigger the sample, then the more accurate the results will be. On the graph there are a few anomalous results. Particularly for the 35 and the 40cm3 of acid experiments. I don't know why the results came up as they did on the graph. For these two experiments, I did nothing different, so there is no explanation for the anomalous results to have occurred. ...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. How much Iron (II) in 100 grams of Spinach Oleracea?

    present in 100 cm3 of spinach extract solution. To do this the moles present in 5 cm3 will have to be multiplied by 20. 0.000302916 mol dm-3 X 20 = 0.00605832 mol dm-3 Only 20 grams of Spinach Oleracea were used to make up the 100cm3 spinach extract solution, so in order to work out the moles of Iron (II)

  2. Investigating the effect of concentration on the rateof reaction between marble chips and Hydrochloric ...

    15 7 9 10.33 30 19 21 17 19.00 30 22 10 12 14.67 40 25 26 23 24.67 40 29 15 17 20.33 50 30 32 28 30.00 50 36 18 21 25.00 60 35 39 34 36.00 60 43 21 25 29.67 70 41 45 41 42.33 70

  1. The Erosion of Marble

    My prediction stated, "as the concentration of hydrochloric acid used is increased, the rate of reaction will increase also," so this then proved my prediction to be correct, i.e. At the acid concentration of 2mol/l the reaction rate in the first minute was 0.52 g/min At the acid concentration of

  2. The Rates of Reaction of Metals with Acid.

    In the method (Experiment 1 Method 5), I dropped the piece of magnesium from the neck of the conical flask down into the acid. One problem that arose was that the piece of magnesium would not fully submerge in the acid.

  1. Indigestion - find out the composition of tablets which are for indigestion and compare ...

    heartburn - information and sales from My Pharmacy UK Andrews antacid What are they for? Andrew antacid chewable tablets neutralise excess acid and provide fast, effective relief from acid indigestion, heartburn and trapped wind. How to take: Adults: Chew or suck 1-2 tablets as required.

  2. Experiment to see how the quantity of marble chips affects the rate of reaction ...

    44 45.66 160 55 40 45 46.66 170 55 40 45 46.66 180 55 41 46 47.33 I also think the amount of marble chips used will not make a difference to the total volume of carbon dioxide at the end.

  1. An Investigation to Measure the Rates of Reaction between Calcium Carbonate (Marble Chips) And ...

    1M, 1.5M, 2M, 2.5M, 3M, 3.5M and 4M Type of calcium carbonate - small granules as there will be a larger surface area Temperature - room temperature (24�C which is 75�F) as this is easiest to control Measurements - every 10cm� starting at 10cm� and finishing at 100cm� It is

  2. To find the effects of the concentration of hydrochloric acid on the rate of ...

    Experiment Design: The apparatus I will use during this experiment is: Conical flask Measuring cylinder Plastic container Burette Bung & tube Stopwatch Weighing machine Marble chips Step one: Measure out 2.04g of marble chips. Fill the plastic container to about half way with water, then fill the burette up to the 50cm mark with water.

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