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

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

The zero lost will always be greater than the dynamism 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, create the temperature to increase. Recording Raw Data: Quantitative card: Measurements of Water, S alt, and mixed bag of the two Trial| Volu! me 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 one-quarter a full essay, order it on our website: OrderEssay.net

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