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

How the Concentration of Hydrochloric acid Affects the Rate of Co2 produced by Marble chips

Extracts from this document...

Introduction

Planning: How the Concentration of Hydrochloric acid Affects the Rate of Co2 produced by Marble chips Introduction: From this experiment I hope to succeed in finding the answer to the to the question: How does the amount of concentration of hydrochloric acid affect the amount of carbon dioxide given off by the reaction of calcium carbonate (marble chips) and the acid. I know that the following reaction takes place when the acid and chips are united: Hydrochloric acid + calcium carbonate ? Calcium chloride + water + Carbon dioxide This is how I know Carbon dioxide is produced but how much with different concentrations of acid is the question. Diagram: Variables: Input variable: Concentration of hydrochloric acid Output variable: Amount of Carbon dioxide produced Constant variables: Temperature (room) Mass of marble chips Volume of acid/water (50cm3) ...read more.

Middle

The five different concentrations I will be using for this experiment will be: Cm3 of hydrochloric acid (2mol/l) Cm3 of water 50 0 40 10 30 20 20 20 10 40 Risk Assessments: Before starting the experiment one should put on safety goggles and a lab coat to prevent the hydrochloric acid from damaging our eyes or clothes. As the acid is highly corrosive it should be handled with great care to avoid external or internal damage. If there is any split I will wipe it up straight away. To avert mistakes I will always label the beaker with the acid in it. The calcium carbonate (CaCo3) or marble in powder form is also dangerous and when it reacts with hydrochloric acid may spurt out and damage my eyes, this is the reason I wear eye protection. ...read more.

Conclusion

Prediction: I predict that the rate of reaction will increase as the concentration increases. This means that the amount of carbon dioxide is produced at a greater rate. See below for the graphs of 'gas collected against concentration' and 'rate of reaction against concentration': Gas Rate of Collected Reaction Concentration Concentration I believe that the gas collected will be proportionate to the concentration because as the concentration weakens, the gas collected decreases too as there is less acid to corrode the marble chips (which produce the Co2.) The other graph rate of reaction against the concentration) represents the same because a smaller concentration will mean a slower rate of reaction and vise versa. This is why the two are proportionate. Basically the two are stating that the higher the concentration the faster the rate of reaction because there is more acid to react with the calcium chloride so the more Co2 is produced as the calcium chloride gives this off. Hugo Jones Chemistry coursework ...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 Patterns of Behaviour 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 Patterns of Behaviour essays

  1. How the temperature affects rate of reaction between marble chips and hydrochloric acid?

    Analysis After conducting my experiment I have discovered - as temperature increases so to does the rate of reaction. As can be seen from my graph, when the temperature is 20�C the time taken to collect 30ml� of CO2 is 40 seconds.

  2. Free essay

    Close Your Eyes

    As I walked past her she whispered "I think she likes you". A piece of her hair had come out of the pony tail she had in and she must have sensed me looking at it because she reached her hand up to where I was looking.

  1. Demonstrate how the changing concentration of the hydrochloric acid affects the amount of carbon ...

    Amount of the substances- As in the surface area section. If there is more surface area to work on- and there would be if there was more marble- then there are more collisions and the rate of reaction is increased.

  2. Investigate how concentration affects the rate of a reaction using marble chips (CaCO3 ) ...

    40 mls 10 mls 50 mls 0 mls We have chosen to use 50mls of solution as that is a reasonable amount to use to react with the marble chips. We decided to have a difference of 10mls each time to compare the concentrations against one another; it gives us

  1. Investigation to see how the Concentration of Hydrochloric Acid affects the Rate of Reaction ...

    I also predict that the graph that shows 1/time taken to produce a given mass of CO2 will be a straight line through the origin. As you increase the concentration of the acid the rate of reaction will also increase.

  2. Investigation into how concentration of hydrochloric acid affects the rate of reaction with marble ...

    Refer to diagram 2, page 2. Plan I plan to carry out this experiment by using all the safety issues and fair testing procedures to give me the most reliable and most accurate set of results. To test our aim I will use different concentrates of hydrochloric acid and add it to the marble chips.

  1. ICT modelling spreadsheet - This coursework was designed to investigate the uses of electricity ...

    The formula for this calculation would be '=$K$2xG4'. To fill this column, repeat the process by going through the menu bar. This formula is known as absolute cell reference. This is where Finally, when working out the total cost of the bill, standard charge and V.A.T.

  2. Investigating how the concentration of acid affects the rate of reaction between hydrochloric acid ...

    is directly proportional to the rate of reaction in the first 2-3 minutes in my results. The secondary evidence produced by the other class show that the rate of reaction doubled; at concentration 0.5mol is approximately half the rate of reaction when the concentration of the acid is 1.0mol.

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