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

An investigation to see how marble chips react with acid.

Extracts from this document...


An investigation to see how marble chips react with acid. In the stomach, if there is too much acid it causes indigestion. One ingredient that can be used against it is calcium carbonate, which neutralises the excess hydrochloric acid. This investigation is to see the neutralisation of stomach acid by marble chips. Hydrochloric + calcium carbonate Calcium chloride + water + carbon dioxide Aim: To investigate one factor that affects the rate of reaction between marble chips and hydrochloric acid. Apparatus 2g marble chips 50 ml hydrochloric acid Conical flask Delivery tube Gas syringe Safety goggles Stopwatch Beaker Safety As we will be handling with acid, we are going to wear safety goggles during the experiment. ...read more.


Diagram Method: The apparatus is set up as shown in the diagram. I accurately measure out 2.00g of marble chips and place them into a conical flask; the chips will need to be of a similar size to make this a fair test. Then I will need to add 50ml of hydrochloric acid to each of the experiments performed to make this fair, using a measuring cylinder to be accurate. We have chosen to use acid, as it will be similar to the acid contained in our stomachs. The solute and solvent are mixed together to form a solution. I will then need to observe the gas syringe every 10 seconds to record the amount of gas given off from the marbles. ...read more.


Evaluation: I believe that my results were almost as accurate as I could get them, and managed to see that the prediction and the conclusion matched. However, there are several things that I would want to change. If I had the chance to perform the experiment in the same lesson the results would have been further accurate. There are no anomalies, but it would further help if those experiments were carried out so that the results could be more similar than those I have as some are not very consistent. Apart from that, my experiment went very well To improve the entire experiment, I would make sure that all the tests were carried out during one lesson, as it would ensure that the chemicals and limestones were identical. It may have been that the results being slightly inconsistent came from using a slightly different acid or limestone. ...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. Peer reviewed

    The Effect of Concentration on the Rate of Reaction when you React ...

    3 star(s)

    The time the carbon dioxide takes to fill the burette tube is the time it takes for the reaction, i.e. the reaction rate. I predict that as the concentration of acid increases, the rate of reaction will decrease. This is because there will be more particles for the reactant between the water molecules.

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

    Curing the problem of putting the bung in too slowly is easy to solve-just put it in quicker and comical flasks should be dried out before carrying out a new set of readings. Reliability of evidence I think that the evidence is fairly reliable since the preliminary result that I

  1. Investigation into the efficiency of various indigestion tablets.

    = 0.11092 x 4.936 = 0.5475011 g (times more) = 547.5 mg CaCO3 Amount of MgCO3 in Bisodol nHCl reacting with MgCO3 = 0.00278 / 100 x 10.4 = 0.0002891 mol Therefore, nMgCO3 = 0.0002891 / 2 = 0.0001445mol MgCO3 in powder.

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

    In the diagram below there are two different concentrations. On the right there is a less concentrated solution to the right. Because of this there are now more hydrochloric acid particles in the solution to hit into the calcium chloride particles.

  1. An Investigation of the weathering of limestone.

    It shows where the most concentrated acid rain falls, represented by the red areas. The darkest red areas are in the north-east of the US, so this must mean that according to Robert Angus Smith that there is where the most fossil fuels are being burnt, so that is where the most concentrated acid rain falls.

  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

  1. A Investigation into the Rate of Chemical Weathering of Marble

    and linking it to the gas syringe to automatically datalog the volume of Co at regular time intervals. 2. By measuring the change in mass - This can be done by measuring, at regular intervals, the mass of the marble chips as it changes.

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

    If large chunks were used, they would have a much smaller total surface area, meaning fewer reactions could initially take place. Due to safety reasons, using acid and a reactive metal is not a sensible idea. One of the by products is hydrogen, which is explosive, therefore it is dangerous to carry out in a school science laboratory.

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