Chemistry (Le Chateliers Principle)

Chemistry (Le Chateliers Principle) - Due: Friday 8th May...

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Due: Friday 8 th May 2009 Chemistry Le Chateliers Principle Distributing Equilibrium Distributing Equilibria :- Le Chateliers Principle
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Experiment Partners: Aim: To observe and explain the different effects, that a change of the conditions have on a system that is in equilibrium, by the applying the Le Chateliers Principle. Hypothesis: If a system that is in equilibrium has stress applied to it, the system would adjust by shifting its position to once again create equilibrium. During a change of a condition, if the temperature is decreased, the equilibrium will shift to the right to produce heat during the reaction. If the temperature is increased, the equilibrium will favor the reactants in order to absorb the heat applied. As the concentration of the reactant is increased, the equilibrium will favor the products, as the increase in reactants will produce more products. Apparatus: See Appendix A Procedure: Part A. Effect of Temperature on Physical Equilibrium 1. 2 -3ml of saturated potassium nitrate solution was added to a clean test tube. 2. One crystal of potassium nitrate was added to the saturated potassium nitrate solution in the test tube. 3. The test tube was placed in a beaker of ice and water for 10 minutes, all results and observations were recorded after the 10 minutes. 4. The test tube was removed after 10 minutes and placed in a test tube rack to warm to room temperature, all results and observations were noted. Part B. Common Ion Effect on a Chemical Equilibrium 1. 50ml of distilled water was measured and poured into a 100ml beaker. 2. 1ml of 0.1M iron (lll) chloride (FeCl 3 ), and 1ml of 0.1M potassium thiocyanate (KSCN) was added to the 100ml beaker. 3. Solution was stirred. 4. Observations were recorded. 5.
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Chemistry (Le Chateliers Principle) - Due: Friday 8th May...

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