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The aim of the investigation is to investigate how the concentration of hydrochloric acid (HCL) affects the decomposition of limestone (calcium carbonate).
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Chemistry plan Tarek Dajani Aim of Investigation: The aim of the investigation is to investigate how the concentration of hydrochloric acid (HCL) affects the decomposition of limestone (calcium carbonate). Variables that could affect the outcome of the investigation: These include: 1. Temperature 2. The amount of CaCO3 3. The state of CaCO3 e.g. Powder, granular, marble 4. The concentration of acid (HCL) 5. The amount of acid (HCL) 6. Catalyst Variable selected for the investigation is: 1. Concentration of acid (HCL) Variables that will remain constant during the investigation are: 1. Temperature 2. Amount of lime stone (CaCO3) 3. The state of lime stone (CaCO3) 4. Volume of acid (HCL) 5. No catalyst to be used Prediction: I predict that increasing the concentration of acid (HCL) will increase the rate of reaction and thus speed up the decomposition of limestone (CaCO3). My prediction is based on the assumption that with increased concentration of HCL there will be more particles of HCL to collide with CaCO3 hence producing more vigorous reaction...
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