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

Investigate how changing the concentration of sodium thiosulphate affects the rate of the reaction with hydrochloric acid

Extracts from this document...

Introduction

AIM I aim to investigate how changing the concentration of sodium thiosulphate affects the rate of the reaction with hydrochloric acid. The reaction The reaction that will occur is a cross-drawn on a piece of paper disappearing because a precipitate (very fine solid) of sulphur is being produced as a waste product of the reaction. ...read more.

Middle

I will do my best to control the variables by using the same bottle of sodium thiosulphate I will use the same equipment as much as possible and will control the temperatures of everything and measure then out exactly. METHOD equipment: Conical flask 100mlMeasuring cylinder 10ml Measuring cylinder Thermometer Beaker Piece of white paper Marker (or pencil etc.) ...read more.

Conclusion

Then using your 10 ml measuring cylinder measure out 5ml of hydrochloric acid. Pour this into the sodium thiosulphate and start the stop watch, watch until the cross has dissapeared and then stop the stop watch. Record the time, then repeat this concentration two or three times to make sure there are no anomolous results. Then do the same experiment this time using the dilutions showen in the table, do each dilution two or three times. Hydrochloric acid Mean Total volume 1 2 3 50 45 40 35 30 ...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. Investigate how changing the concentration of Sodium Thiosulphate affects the rate of reaction with ...

    cross marked on it - Sodium Thiosulphate solution - Hydrochloric Acid - Water I am going to measure how changing the concentration of Sodium Thiosulphate affects the reaction time between it and hydrochloric acid. Every time I will add 20 ml of hydrochloric acid that is 2 lower to that,

  2. An Experiment to Investigate the Effect of Changing the Concentration of Hydrochloric Acid on ...

    If my concentrations were increasing by 0.2 molar each time I would have six readings, which I would not have, been able to carry out in the limited time allocated to carry out the experiment. I also found that when doing the actual experiment I would have to use the same cross and makes sure that it did not fade.

  1. Experiment to investigate how changing the concentration of hydrochloric acid affects the rate of ...

    Experiment 2: 1. Display 1 beaker and place 2g of chalk in it. Pour 40ml of hydrochloric acid in the beaker and observe: * If it is an endothermic or exothermic reaction * What happens to the chalk * What do I see * Rate of reaction Observation and results Reactant Is the reaction endothermic or exothermic?

  2. To investigate how changing the temperature affects the rate of reaction between sodium thiosulphate ...

    This happens because the solution becomes diluted making the amount of molecules colliding into each other smaller. Therefore it takes longer for the collisions to occur. If the volume of thiosulphate is increased and the volume of water is decreased, the reactions would be quicker also.

  1. To investigate a factor that affects the rate of reaction and why?

    Observe the contents of the conical flask, it should begin to turn a milky colour. 8. Stop timing when the cross can no longer be seen due to the sodium precipitate. 9. Repeat. 10. Repeat again. *Follow these instructions for each different molarity of hydrochloric acid; 0.2M, 0.5M, 1M,

  2. How changing the concentration of acid affects the rate of reaction

    I will be controlling the variables, I will make sure that the measuring cylinder for Hydrochloric acid and Thiosulphate will not be mixed up, also the amount of acid added will be the same throughout the experiment. This indicates I am doing a fair test, also I will be using Independent variable, this is you deliberately change something.

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