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Determine the enthalpy change of the decomposition of sodium hydrogen carbonate by thermochemical measurement and the application of Hess' Law.
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| Submitted: Thu Jul 11 2002
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W.J.E.C. AS-Level Chemistry CH3c Assessed Coursework - Experiment 2 Aim:- to determine the enthalpy change of the decomposition of sodium hydrogen carbonate by thermochemical measurement and the application of Hess' Law. Risk Assessment 2.0mol.dm-3 Hydrochloric Acid - low hazard; may still cause harm if it comes into contact with eyes or broken skin. If the hydrochloric acid comes into contact with skin, notify supervisor and wash affected area with water. Should spillage occur, again notify supervisor and dilute with water before mopping up. Sodium Carbonate - is an alkaline metal and poses a hazard. Should it come into contact with skin wash immediately. Throughout the experiment safety goggles and a lab coat should be worn. Your eyes are a highly sensitive region of your body and care should be taken to protect them. Apparatus Two plastic cups Two large beakers Two thermometers - graduated in 0.5c divisions Biurette NB. it is possible to carry out the experiment using one set of the...
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