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To investigate the effect of temperature on the rate of reaction.

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Introduction

Reaction of Sodium Thiosulphate and Hydrochloric Acid Aim: To investigate the effect of temperature on the rate of reaction Prediction I predict that at higher temperatures the Sodium Thiosulphate will react faster with the hydrochloric acid and slower at lower temperatures. This is because at lower temperatures, particles of reacting substances do not have as much energy than particles at higher temperatures. ...read more.

Middle

Then I will place the thermometer into the conical flask with the Sodium Thiosulphate. I will then place that into the heating bath. When the Sodium Thiosulphate is at the required temperature I will measure 5cm of Hydrochloric acid in the small measuring cylinder and add it to the Sodium Thiosulphate. I will then place the mixture onto the 'X' Mat straight away. ...read more.

Conclusion

Fair Testing I will make sure this is a fair test by choosing five evenly spaced temperatures to record my results. I will repeat this test three times. I will also make sure the amount of Sodium Thiosulphate and Hydrochloric acid stays the same for all the experiments. I will also make sure as soon as the Hydrochloric acid has been added I will start the timer straight away. I will also make sure that I give each temperature the same amount of stirs. Craig Stamp 10RS ...read more.

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