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* School Name: Al Mashrek International School * School Code: 2108 * Subject: Chemistry * Topic: Indirect A thermometric Titration. * Assessment: Data Collection, Data Processing & Presenting, Conclusion & Evaluation. * Candidate Name: Bassam Al-Nawaiseh * Date: 20/5/2007 * Aim: The aim of this experiment is to determine the concentrations of two acids. The two acids are Hydrochloric acid, HCl, and Ethanoic acid, CH3CO2H. This will be done by thermometric titration, by calculating the enthalpy change for each reaction, enthalpy of neutralization. * Data Collection: Table 1: the temperature change for the HCl solution and CH3CO2H solution after adding 5 cm³ portions of 1M NaOH on each acid. Volume of NaOH / cm³ ±0.05 Temperature / ºC ±0.5 Hydrochloric Acid Ethanoic Acid Initial 23 23 5 26 26 10 28 28 15 29 29 20 31 31 25 32 32 30 34 32 35 31 31 40 30 30 45 30 30 50 30 30 * Data Processing & Presenting: Graph 1: represents the temperature change in the solution when titrated with HCl after extrapolation. Graph 2: Represents the temperature change of the solution titrated against Ethanoic Acid after extrapolation. * From graph 1, it is shown...

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