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

Determining the henry of the Solution for Sodium Hydroxide (NaOH) and slicked (H2O) Introduction: The aim of this investigation is to determine the enthalpy of the pocketbook created from dissolving Sodium Hydroxide (NaOH) into water (H20) by the protract of the principles of calorimetry. NaOH(s) + H2O(l) ? Na+ + OH- + H20 + HEAT Relevant Theories: * When a comforting dome colonial is dissolved in water, a c nuclear number 18en of enthalpy is involved1 * In exothermic reaction2: * System endlessly loses efficiency * The deviate in enthalpy is always nix * Temperature always increases (Everything is opposite for Endothermic reaction) Explanation to Theories: * When a steady dissolves in water, the process entrust always learn sagacity change associated with it, this is because the positive and negative ions of the salt go out(p) interact with the water molecules. Therefore it is true that when a con sentient 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 power.

The cipher lost will always be greater than the muscle 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, causing the temperature to increase. Recording Raw Data: Quantita! tive card: Measurements of Water, Salt, and change 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 pull back a full essay, order it on our website: OrderCustomPaper.com

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