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Essay's paper info
| Topic: |
Science
|
| Number of pages / Number of words: |
7 / 1927 |
Essay's paper body
The variable I am going to use is the concentration of acid. To measure the rate of reaction I am going to time how long it takes to fill a test tube with the gas product carbon dioxide.
2. Firstly I am going to place the calcium carbonate in a 400ml flask, before I carefully add the acid I will fill a container about the size of an ice cream tub (filled with approx...
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700ml).
3. Then I will add the acid with the correct concentration, the measurements of the calcium carbonate and the hydrochloric acid are both going to be decided after the preliminary experiments to give increased accuracy in the experiment.
4. Quickly after the acid is put into the flask I will put a bung tightly in the neck of the flask with the delivery tube in it so no gas is lost because this will affect the timings and make the experiments unfair, also no gas should be lost into the container before the cylinder is full as this will have the same effect; with the end of the delivery tube in the water in the container with the 25cm? measuring cylinder filled with water over the end of the delivery tube...
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General points of the essay
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