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

Investigation into the Reaction Between Marble Chips and Hydrochloric Acid

Extracts from this document...

Introduction

Investigation into the Reaction Between Marble Chips and Hydrochloric Acid Planning Introduction In the reaction between marble and hydrochloric acid, calcium carbonate particles from the marble react with the hydrogen chloride particles in the hydrochloric acid producing calcium chloride, water and carbon dioxide. The formula for this reaction is: CaCO3 (s) + 2HCl (aq) ? CaCl2 (s) +H2O (l) + CO2 (g) Choosing the variable To investigate this reaction, first a variable must be chosen for the investigation. In order for the calcium carbonate and hydrochloric acid particles to react together they must collide with each other and the collision must have enough energy. So, to select a variable for the investigation, a variable must be chosen that either affects the number of collisions between the calcium carbonate and hydrochloric acid particles or affects the energy of the collision. Some variables that could affect the rate of the reaction are: * The concentration of hydrochloric acid used in the reaction. The higher the concentration of acid, the more particles of acid there are in the solution. ...read more.

Middle

It was then chosen to use 50ml of diluted acid. This meant that there wasn't as much acid so the rate of reaction could now be realistically recorded. * The mass of marble chips to use. I decided to use 5g of marble chips accurate to within 1g. 5g of marble chips crushed into a powder was attempted to be used but the rate of the reaction was far too fast due to the large surface area. Therefore, 5g of intact marble chips of relatively the same size and surface area were used but the rate of the reaction was still too fast so 5g of large marble chips of relatively the same surface area were used and this slowed down the rate of reaction considerably so that it was realistically recordable. * How to record the data. The gas released during the experiment was first attempted to be recorded in an upside down measuring cylinder filled with water. The gas released during the experiment was then attempted to be recorded by attaching a syringe and then as gas was released, the syringe was pushed along a scale indicating how much gas was released during the experiment. ...read more.

Conclusion

* 0.8M Each concentration of acid was experimented with twice to get two sets of results to average together in order to eliminate any anomalous results. Prediction I predict that the higher the concentration of hydrochloric acid, the quicker the rate of the reaction will be. This is because in order for the calcium carbonate and hydrochloric acid particles to react together they must collide with each other. The higher the concentration of acid, the more particles of acid there are in the solution. Therefore it is more likely for a successful collision between an acid particle and a calcium carbonate particle to occur and so the rate of reaction will be higher. I also predict that the reactions with all the concentrations will start off quickly and then slow down as time goes on because as the reaction occurs, more and more acid particles and calcium carbonate particles will react together, reducing the number of these particles. With there being fewer particles to react, collision between these particles will become less and less frequent so the rate of reaction should decrease as time goes on. Matthew Crites 11F ...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. To investigate the factors which affect the rate of reaction between marble chips and ...

    94 225 240 Secs 98 100 Altogether 4mins 15 sec Small (2-4mm) 4g 25ml 15 30 45 60 75 Secs 15 32 65 85 100 Altogether 1min and 15 secs 15sec powdered 4g 25ml 5 10 15 20 25 30 35 40 Secs 90 93 85 96 96 97 97

  2. An Investigation to determine the factors which affect the rates of reaction between Marble ...

    But all in all I think I will choose to use the medium chips. Also both sets of marble chips were able to react with 0.2 M HCL; hence I have found the two limits of my concentrations, 2M and 0.2.

  1. An investigation to find out how the concentration of acid affects the rate of ...

    The atoms have to be broken loose from their arrangements and re-arranged with new bonds into new substances. As you can see from the table, earlier on, I will use 100cm� of acid in each of my experiments. However I designed my experiments so that as the reaction takes place

  2. An Investigation into what factors affect the amount of Carbon Dioxide produced in the ...

    This would mean the gradient of the graph would decrease near the end, but as I am only doing 3 mins I should only get a small tailing off. There are many variables in this experiment such as surface area, which can make a difference because if the surface area

  1. Investigating Factors That Affect The Rate Of Reaction Between Marble Chips And Hydrochloric Acid.

    With the chips closer together it means that the collisions will occur more often because the particles will not loose their energy travelling to another particle otherwise the collisions will be less. * Amount of chips- If the amount of chips is more than the amount of acid it means

  2. An experiment to investigate the reaction between marble chips and HCl

    I would have had to collect 1200cm3 of CO2. This is also proven below. I am using 50cm3 of 2M HCl acid with 10g of 10-12mm sized CaCO3 chips: Moles = molarity � volume = 2�50 = 0.1 � 0.05 � 24000 1000 1000 2 = 1200cm3 I chose a

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