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To Investigate the Effect of Altering 2 Variables (Separately) On the Rate of a Reaction Between Marble (Calcium Carbonate) and Hydrochloric Acid.
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Keegan Fisher Chemistry Coursework Aim- to investigate the effect of altering 2 variables (separately) on the rate of a reaction between marble (calcium carbonate) and hydrochloric acid. The two variables that I am going to use are going to be the size ( surface area) of the marble chips and the concentration of the hydrochloric acid. Safety Aspects... These are just a few of the many more risks that can be made in this experiment Risk Level of Risk Method of Reducing Risk Level of Risk Spilling hydrochloric acid over you High Be careful when handling the acid and wear a lab coat to stop it getting on your clothes Medium Tripping over people's bags left in the aisles. Medium Make sure your bags are under your desk or put away in your locker. Low Hypothesis: I say that with smaller the chip the faster the rate of the reaction would be. The larger the marble chips the slower rate of the reaction would be. The...
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