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

What Affects the Speed of Reaction Between Calcium Carbonate (Marble) + Hydrochloric Acid?

Extracts from this document...


What affects the speed of reaction between calcium carbonate (marble) + hydrochloric acid? My aim is to investigate the speed of reaction between calcium carbonate (marble) and hydrochloric acid. I think that changing the concentration of the acid will speed up the reaction rate. I think this because the higher the concentration of the acid the more particles it has to collide with. Powering the marble chip will make the reaction go faster, I can explain this, because the marble chip is powdered the more surface area there is, which means the acid can collide more. The temperature can also make a difference to the experiment. The greater the temperature the more particles will collide because............ I wouldn't use temperature because it is very difficult to keep the correct temperature whilst trying to perform the experiment. The apparatus I am going to use are 1. Hydrochloric Acid 2. A gas syringe to measure the volume of the gas given off. 3. Calcium carbonate (marble chips) 4. A chronicle flask to do the experiment in 5. A stop watch to record the time of the experiment 6. ...read more.


We must also take our readings at the same intervals throughout the experiment i.e. I will take a reading every fifteen seconds for all of my experiments. I predict that the more concentrated the acid the quicker the reaction will take place, because the more concentrated the acid is then it will make the chips react faster and more hydrogen will be given off in a quicker time. The smaller the stones are, the even quicker the reaction will happen, this is because the acid has a smaller surface area to act upon. Other factors are what kind of water to use for dilution, I could either use water from the tap which is not very pure or it may be too hot or too cold, or I could use distilled water. Tap water may have some things in it which may affect the results. The temperature also could affect the experiment because if heat is applied then the particles would move around more and affect the results ,and then more gas would be made. Results Concentration Time to get to 20cm3 25, 0 56 20, 5 70 15, 10 102 10, 15 183 5, 20 129 Evaluating Evidence I think that the experiment went very well. ...read more.


Analysing Evidence and Conclusions From looking at my results and graph I am able to conclude that the more concentrated the acid the quicker the reaction happened and the more gas was produced. As we look at the graph we can clearly see that in all five results at the beginning the reaction happened more quickly than at the end where we can see that it started to tail off. Before I did the experiments I made some predictions they were that the more concentrated the acid was the quicker the reaction would happen and more hydrogen would be produced. This was completely correct because what I thought would happen did. At this point we are able to answer our main hypothesis which was 'how does changing the concentration of acid affect the rate of reaction between hydrochloric acid and calcium carbonate.' The answer to this would be that changing the concentration of the acid will either make it go slower or quicker and more or less gas would be produced depending on whether the concentrations were more or less. Overall this was a very successful experiment and everything went very smoothly, and that was why my results were very good, and I am able to make a conclusion like this. ...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. What Factors Affect the Rate of Reaction Between Hydrochloric Acid and Calcium Carbonate?

    However the graphs could be hard to interpret, as the volume of gas given off in a specific time would be hard to ascertain from the increase of pressure in a specific time. So I therefore decided to use different equipment.

  2. To investigate the rate of reaction between different concentrations of hydrochloric acid with metal ...

    Therefore, we can monitor it because it will give out twice as many products. The average rate is measured by finding the time taken for the production of a given volume change for each concentration. Since: Rate = Measured change Time Rate is proportional to 1 1 Time Therefore, it is possible to plot rate against concentration.

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

    Here are the results of these four experiments Measurements times were taken (cm3) 2g - 24�C 25ml - 4 molar 2g - 24�C 20 ml - 4 molar 2g - 24�C 20ml - 1 molar 2g - 24�C 20ml - 1/2 molar 10 5 6 19 31 20 9 8

  2. Investigate how the concentration of 10 ml of hydrochloric acid affects the rate of ...

    is a lot weaker so it can't react as fast as the stronger concentrations and there is easily enough marble for it to work on at its full potential. Relate to original prediction This supports my original prediction that as the concentration of the hydrochloric acid is increased the amount of gas produced in the given time will increase.

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

    This should not have happened because the acid was weaker so the reaction should have taken longer. The reaction took longer in all of the other repetitions, so why did it take longer in this case? There are several reasons why this could have happened.

  2. Investigate the factors, which affects how quickly Calcium carbonate reacts with hydrochloric acid.

    The first factor I will explain will be surface area and this will be using the COLLISION THEORY Powdered calcium carbonate has much larger surface area than small lumps that in have a much greater surface area than the large lumps.

  1. Does the concentration of hydrochloric acid affect its rate of reaction with calcium carbonate?

    My findings are in the table below: Mass of calcium carbonate (g) Volume of hydrochloric acid solution (cm�) Time taken for 50cm� of carbon dioxide to be produced (s) 100% 20% 2.5 25 27.56 248.87 2.5 50 24.51 141.32 5 25 9.24 127.66 5 50 7.99 58.12 7.5 25 5.85

  2. The Erosion of Marble

    0.23 210.00 0.27 0.21 0.24 240.00 0.28 0.23 0.26 270.00 0.29 0.24 0.27 On the next four pages are the graphs of my results. I am now going to work out the reaction rate for each of my results, the formula for this is; Reaction Rate = Change in amount

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