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

Find out how the changing the concentration of hydrochloric acid will affect decomposition of calcium carbonate.

Extracts from this document...

Introduction

Marble Chips and HCL Aim: the aim of this practical is to find out how the changing the concentration of hydrochloric acid will affect decomposition of calcium carbonate Prediction : I made some prediction that the more concentrated The acid was the quicker the reaction would Happen and more hydrogen would be produce 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. In a stronger acid there are more acid particles or hydrogen ions to collide at a faster rate this is called collision theory this happens because in a strong acid (2 mol) there are more hydrochloric acid ions these ions the more likely they are to bump into the marble chip but in a weak acid (0.1 mol) there are not as likely to bump into the marble chip basicly a weak acid (1.0 mol)is like walking down a corridor with ...read more.

Middle

in relation to each other, otherwise there results will be completely different to what we will expect and it will ruin the experiment. We must also take our readings at the same intervals throughout the experiment i.e. I will take a reading every five seconds for all of my experiments. Method When doing my experiments I will use the same Process throughout. Once I have set up the apparatus I will measure out 25cm3 of acid in a measuring Tube and then pour it into a Becker .Then I will be ready with the stop watch and then quickly drop in the chips into the acid push on the bung and start the stop watch. This must all be done in a very short space of time. From there, I must take the reading from the volume in the gas syringe every five seconds very accurately until 25 secs is up must record the results in a table and then write it up neat later. ...read more.

Conclusion

This is because I got all the results that I wanted and they look very good. The results were accurate and so I am able to make a good conclusion. From looking at my results I can see that there were no poor results which were a good thing and it proves that everything went very well. Even though the experiments went very well I decided to repeat one concentration of acid 3 times just to see if I could repeat the experiment and get roughly the same results, which is what I did do, and these to go very well. There was no real source of error in the apparatus along as it all was working well and the way it should have been. The only possibility was if the temperature of the acid had changed from when we did the first reading to the finish i.e. from when we did the first experiment, the acid hopefully would have been the same temperature. ...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. To investigate the rate of reaction between different concentrations of hydrochloric acid with metal ...

    5 1.8 /// /// /// /// 1 20 30 0.8 2 20 30 0.8 3 20 30 0.8 /// Represents, the values in between the sets of data, I have left spaces, so that anomalous results can be rectified and redone if needed.

  2. An Experiment to Determine the Enthalpy Change for the Decomposition of Calcium Carbonate.

    3.8�C The heat absorbed or evolved during this reaction is calculated by using the formula: Heat produced = mass of solution x change in temperature x specific heat capacity of water (The specific heat capacity of solution = 4.2 J g�1 K�1)

  1. Investigating the effects of changing the concentration of different solutions on the refractive index ...

    Day 8 Once I was aware of this situation, I tried to change the magnification to 56. Then I prepared all the salt and sugar solutions again. Unfortunately, it turned out that in all of the cases, the distances travelled to get a clear image of coin in just solution

  2. What Factors Affect the Rate of Reaction Between Hydrochloric Acid and Calcium Carbonate?

    for every mole or percent the concentration of acid is reduced (the line of best fit is a curve and not a straight line). This is because, as the concentration of the acid is decreased, there are more water molecules in a specific volume of the solution, and there will

  1. Investigating how the concentration of hydrochloric acid affects the rate of reaction with Calcium ...

    I also know that it is most likely true to collision theory and this means that as the concentration of acid increases, the rate of reaction will increase also. Experimental Plan From my preliminary experiment, I can now construct a more detailed plan of my experiment.

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

    1M, 1.5M, 2M, 2.5M, 3M, 3.5M and 4M Type of calcium carbonate - small granules as there will be a larger surface area Temperature - room temperature (24�C which is 75�F) as this is easiest to control Measurements - every 10cm� starting at 10cm� and finishing at 100cm� It is

  1. 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.

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

    For my pilot study, the first value that I tried to look at was the concentration of hydrochloric acid in water that would be used. I decided to make the intervals 20% between a range of 100% and 20%,

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