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... E Science Coursework
How Concentration Effects the Rate of Reaction
Aim
The aim of this experiment between Hydrochloric acid and Sodium-thiosulphate is to determine how varing concentrations of Hydrochloric acideffect the rate of reaction between the two substances.
Prediction & Theory
I predict that the the less the Hydrochloric acid is concentrated the slower the reaction will be due to the fact that when there are fewer Hydrochloric acid molecules there is a lesser chance that the molecules will colide with the Sodium-thiosulphate. ... And contaminate the new substance, making a reaction occur prematurely. Using the same cylinder for each experiment will prevent this
Do all the experiments at room tempreature because higher tempretures speed up the reaction
Saftey Measures
For the appropriate saftey measures I will:
Wear saftey googles at all times
Clean up all spills and messes when they occur
Results
Sodium-thiosulphate Volume (ml) Time (s)
water acid 1st 2nd 3rd
25 5 20 60.
Approximate Word count = 542
Approximate Pages = 2.2
(250 words per page double spaced)
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