• 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...

Introduction

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.

Middle

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.

Conclusion

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. Marked by a teacher

    Enthalpy of Neutralisation.

    3 star(s)

    will be double thermal energy produced in the volume of liquid, as the solution is more concentrated and there are more H+ and OH- ions to produce water. But if the concentrations reacted were different then this too would affect the exothermic neutralisation reaction.

  2. Peer reviewed

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

    3 star(s)

    The reaction rate increases by 2 seconds instead of decreasing. The difference between a 2 molar and a 2.5 molar concentrated acid is not very big at all. They are similar to one another and therefore during the three attempts one of the attempts for 2.5 moles resulted in a slower reaction.

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

    have affected the final outcome since gas would have escaped into the atmosphere rather than into the measuring cylinder where it could be measured. Also, at the end of each set of three readings for each concentration of acid, we washed out the conical flask so there was no acid

  2. Investigation into the efficiency of various indigestion tablets.

    Scientific details Indigestion is caused by excess hydrochloric acid, produced in the lining of the stomach. This can be treated quickly and effectively, using medicines containing chemicals called antacids. Antacids are alkalis that are used to neutralise the acid, turning it into a salt and water.

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

    The speed of the reaction is determined by a number of things, these are, for example: * Concentration * Temperature * Surface area * Catalyst if it's available which in this case there isn't one. Concentration The concentration can change the speed of reaction because of the amount of partials in the solution.

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

    It is also not very clear what the universal indicator reads, as it is colour coded, you could be several PH points off what it actually is. Reacting an acid with a carbonate is safe, and it is easy to record the amount of carbon dioxide produced using an upside down measuring cylinder.

  1. The Erosion of Marble

    Put the measuring cylinder with a total mass of 40 ml of solution in it on the scales along with the beaker with 30 grams of calcium carbonate in it. 7. Tare the scales. 8. Drop the Hydrochloric acid into the beaker and start the stopwatch, record how much

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

    If the temperature were varied it would show whether or not temperature has an effect on the rate of chemical weathering of marble. * Surface Area of Marble - This is the most difficult variable to control because to compare the effect of varying surface area it would be necessary to estimate the surface area involved.

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