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To find if changing the concentration of an acid will increase or decrease the rate of the reaction when marble is dissolved in hydrochloric acid using the equation CaCO3 + 2HCl CaCl2 +H2O + CO2.
Member rating: No Rating | Words: | Submitted: Tue Nov 15 2005
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Aim To find if changing the concentration of an acid will increase or decrease the rate of the reaction when marble is dissolved in hydrochloric acid using the equation CaCO3 + 2HCl CaCl2 +H2O + CO2. Equipment list * conical flask * stop clock * three measuring cylinders * gas syringe * glass beaker Materials Required * Marble Chips * Hydrochloric acid * De-ionised water Safety Rules * Always wear safety glasses when working in the lab. If chemicals get into your eyes they could blind you. * Tie hair back. * Stand up when working on an experiment. * Don't splash chemicals around. * Mop up spills carefully with a cloth for that purpose. * Do not taste anything in the lab. * Handle chemicals with the respect they deserve: especially acids, alkalis, and poisonous and flammable substances. * Handle glass wear with care. * Find out what to do in case of fire, or chemicals in your eyes, or other kinds of accident. Talk the safety drill...
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