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Rate of Reaction Coursework
Preliminary Work
Aim: How does ‘Surface Area’ affect the rate of reaction between calcium carbonate and hydrochloric acid?
Prediction: I predict that the bigger the surface area the faster the calcium carbonate will react with the hydrochloric acid therefore a faster reaction.
Theory: The theory behind my prediction is that the bigger the surface area the more the hydrochloric acid can get at the calcium carbonate in a shorter space of time therefore making a quicker reaction this can be explained by the diagrams on page 2. ... 3
80 - - - -
100 - - - -
120 - - - -
This is my results table for small chips (large surface area) and how surface area affects rate of reaction
Medium Chips Medium Area
Time Taken (sec) Volume of CO2 (ml³) Average Volume of CO2 (ml³)
0 0 0 0 0
20 15 11 9 11. ... 7
This is my results table for medium chips (medium surface area) and how surface area affects rate of reaction
Large Chips Small Area
Time Taken (sec) Volume of CO2 (ml³) Average Volume of CO2 (ml³)
0 1 1 1 1
20 19 12 15 15. ... 3
100 - - - -
120 - - - -
This is my results table for large chips (small surface area) and how surface area affects rate of reaction
Conclusion: My theory for the prediction was the bigger the surface area the more the hydrochloric acid can get at the calcium carbonate in a shorter space of time.
Approximate Word count = 1138
Approximate Pages = 4.6
(250 words per page double spaced)
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