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Investigate one of the factors which effects the speed at which acid rain dissolves limestone.
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Investigation - Factors which effect the speed of reaction between acid rain and limestone Aim - To investigate one of the factors which effects the speed at which acid rain dissolves limestone. Prediction Acid rain causes damage to building stones e.g. marble and limestone, by causing them to crumble and dissolve. Because it is not possible to use this actual situation in an experiment, I will simulate this situation on a smaller scale using marble chips and dilute hydrochloric acid. The equation for the reaction that occurs is- Calcium Carbonate + Hydrochloric acid --> Calcium chloride + Water + Carbon dioxide CaCO3 (s) + 2HCl (aq) --> CaCl2 (aq) + H20 (L) + CO2 (g) The factors which effect the speed of this reaction are * Volume of acid / Limestone * Surface area of Limestone * Temperature of acid * Concentration of acid. Temperature and Concentration of acid are two factors I could investigate which would provide...
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