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Investigate how varying the surface area of marble chips differs their rate of reaction with Hydrochloric acid.
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GCSE Chemistry coursework When Hydrochloric acid mixes with marble chips a reaction takes place and gas is given off, we are going to investigate factors that vary how the gas is given off. Aim I am going to investigate how varying the surface area of marble chips differs their rate of reaction with Hydrochloric acid. Variables I am going to make a table of the different varible we can use for our experiment. Level of Hydrochloric acid This must stay the same through out the experiment, we will use 20cm³ of hydrochloric acid each time we repeat the experiment and we will measure it out using a measuring cylinder. By keeping the level of hydrochloric acid constant we are then able to focus purely on how surface area affects rate of reaction Size of marble chips We are going to use the same mass of marble chips each time we repeat the experiment but we are going to use...
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