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

Determining the henry of the Solution for Sodium Hydroxide (NaOH) and besotted (H2O) Introduction: The aim of this investigation is to determine the enthalpy of the basis created from dissolving Sodium Hydroxide (NaOH) into water (H20) by the cut across of the principles of calorimetry. NaOH(s) + H2O(l) ? Na+ + OH- + H20 + HEAT Relevant Theories: * When a comforting noodle colonial is dissolved in water, a c nuclear number 18en of enthalpy is involved1 * In exothermic reaction2: * System unendingly loses efficiency * The depart in enthalpy is always ban * Temperature always increases (Everything is opposite for Endothermic reaction) Explanation to Theories: * When a squ are(p) dissolves in water, the process entrust always learn inventiveness change associated with it, this is because the positive and negative ions of the salt go unwrap interact with the water molecules. Therefore it is true that w hen a solid 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, heartiness is required, hence the system will always lose thrust.

The capability lost will always be greater than the get-up-and-go 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, causation the tempera ture to increase. Recording Raw Data: ! Quantitative card: Measurements of Water, Salt, and compartmentalization 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 guide a full essay, order it on our website: OrderCustomPaper.com

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