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

Investigate the effect of temperature on the rate of reaction, when the volumes and concentration of the sodium thiosulphate solution and dilute hydrochloric acid are kept the same.

Extracts from this document...

Introduction

Test Sodium Thiosulphate (cm ) Hydrochloric acid (cm ) Water (cm ) Total amount (cm ) 1 20cm 10cm 40cm 70cm 2 25cm 10cm 35cm 70cm 3 30cm 10cm 30cm 70cm 4 35cm 10cm 25cm 70cm 5 40cm 10cm 20cm 70cm 6 45cm 10cm 15cm 70cm Melissa Romera Chemistry Coursework Aim In an experiment to investigate the effect of temperature on the rate of reaction, the volumes and concentration of the sodium thiosulphate solution and dilute hydrochloric acid are kept the same. I am going to investigate how changing a concentration of sodium thiosulphate affects the rate of reaction between sodium thiosulphate and hydrochloric acid. Prediction I predict that the lower concentration of sodium thiosulphate and the higher concentration of water the faster the reaction will be. I think this because water dilutes the sodium thiosulphate like it dilutes juices. ...read more.

Middle

Once you have done the trial you will need to record 2 sets of results to get a clear set of results so that it is a fair test. The reason for using this method because I feel like these volumes will give me a good set of results and doing up to 6 temperature it will give me a clear average for my graph of reaction. Safety For this and every experiment you will need to do it safely. So this includes wearing goggles, tie your hair back and making sure you hold on look after you equipment sensibly. Make sure your goggles are over your eyes at all times until all the equipment is away. Wipe down the area you worked at and wash your hands before you go and eat anything. Fair test To make this a fair test the volume in total will add up to 70cm . ...read more.

Conclusion

2NaCL(aq) + H O(l) + S(s) + SO (g) Trial Test min.sec.mini sec First Test min.sec.mini sec Second Test min.sec.mini sec Average Fit min.sec.mini sec 1 00.75.53 00.76.22 00.78.16 00.77.19 2 00.63.34 00.69.16 00.51.81 00.68.50 3 00.49.64 00.55.35 00.51.81 00.53.58 4 00.41.40 00.48.35 00.48.16 00.48.26 5 00.34.56 00.39.26 00.34.99 00.37.16 6 00.31.23 00.35.02 00.33.09 00.34.06 This table above is the second table with the correct set of results. As you can see from the first table I have changed the first results and they fit together a lot better now. So with just changing that one set of results my graph will and work how it is meant to be look. Conclusion As a conclusion to my results I am very happy with the way I carried out the results because I carefully made sure I was pouring in the right amounts in and making sure I was starting the stopwatch as soon as the Hydrochloric acid was poured in. ...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

    To investigate the effect of temperature on the rate of reaction

    4 star(s)

    I predict that, as the temperature increases, the rate of reaction will become faster and as a result increase. Increasing the temperature would also give the particles more kinetic energy, making them vibrate more and increasing the likelihood of colliding.

  2. To investigate the effect of concentration on the temperature rise, heat evolved and heat ...

    Although the doubled 2 M value is short of the exact expected doubled value, the tripled 3 M value is almost exactly the expected tripled value. This is because when the concentration is doubled the number of H+ and OH- ions doubles, and when this doubles the number of reactions

  1. Rate of Reaction between Sodium Thiosulphate and Dilute Hydrochloric acid

    I will stir it because I think that it will help the reaction move forward quicker. 5. I will repeat each amount 3 times so I can get an average. This will help me to see whether my results are reasonable compared to other results that I will have obtained for those particular quantities.

  2. The Effect Of Concentration Of The Reaction Between Sodium Thiosulphate And Hydrochloric Acid

    It is easy to see why: Diagram 1 Diagram 2 Diagram one shows a soluition that includes water molecules, acid particles and magnesium atoms. In a dilute acid there are fewer acid particles. This means there is a less chance of an acid particle colliding a magnesium atom.

  1. What factors affect the rate pf reaction between sodium thiosulphate and hydrochloric acid?

    My results were fairly accurate as they are all very close to the line of best fit and match my prediction. This shows that my prediction is right because using my results from the graph and the line of best fit I have calculated that the rate of reaction doubles when the concentration of sodium thiosulphate is doubled.

  2. to investigate how the concentration affects the rate of the reaction

    The kinetic theory of matter states that increasing the temperature of a substance, the particles tend to move faster and collide with each other. For the reaction between magnesium and hydrochloric acid, if the temperature is increased, the particles each substance move faster and causing more collisions thereby increasing the rate of the reaction.

  1. I am investigating how the effect of concentration has on the rate of reaction ...

    what volume and concentration should then be used to get the optimum results. The concentration of the Sodium Thiosulphate that was used in the preliminary experiment was 0.003M which was weak; the volume of the sodium thiosulphate and the hydrochloric acid was too low.

  2. Investigating what affects the rate of reaction between sodium thiosulphate and hydrochloric acid

    I am taking this precaution to prevent parallax. If the person who is doing the pouring is standing up and therefore has his eye level above the 100ml mark, he might think he has poured the correct amount but due to parallax, he will have poured less. 3)

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