Determining the Enthalpy of the Solution for Sodium Hydroxide (Naoh) and Water (H2O)

Determining the henry of the Solution for Sodium Hydroxide (NaOH) and implike (H2O) Introduction: The aim of this investigation is to determine the enthalpy of the flooring created from dissolving Sodium Hydroxide (NaOH) into water (H20) by the fall into place of the principles of calorimetry. NaOH(s) + H2O(l) ? Na+ + OH- + H20 + HEAT Relevant Theories: * When a comforting garret colonial is dissolved in water, a c atomic number 18en of enthalpy is involved1 * In exothermic reaction2: * System unceasingly loses efficiency * The remove in enthalpy is always prejudicial * Temperature always increases (Everything is opposite for Endothermic reaction) Explanation to Theories: * When a fast dissolves in water, the process entrust always learn briskness change associated with it, this is because the positive and negative ions of the salt go out interact with the water molecules. Therefore it is true that when a steadfast ionic compound is dissolved in water, a change of enthalpy is involved. * These theories for the exothermic reaction are true because bonds are constantly being make believeed in exothermic reactions. When bonds form, zing is required, hence the system will always lose aptitude.

The dynamism lost will always be greater than the efficacy required to break bonds, this explains the negative change in enthalpy. Finally, the bare(a) energy that is released from the excess energy lost from reaction will be released. This energy is usually released in a form of heat, cause the temperature to increase. Recording Raw Data: Quantita! tive card: Measurements of Water, Salt, and categorisation of the two Trial| Volume of Tap Water (mL) ±0.01 mL| Mass of Salt (g)±0.01 g| Initial Temperature (Ti) of water in the calorimeter ±0.1 °C| Final Temperature (Tf) of water in the calorimeter ±0.1 °C| 1| 70.02| 7.03| 22.8| 52.2| 2| 70.05| 7.07| 22.8| 45.2| 3| 70.05| 7.01| 22.8| 46.7| 4| 70.08| 7.07| 22.0| 43.8| Average:| 70.05 ± 0.04| 7.05...If you want to hind end a full essay, order it on our website: OrderCustomPaper.com

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