Back to category: Science Limited version - please login or register to view the entire paper. Disturbing Equilibruim Experiment 36 Disturbing Equilibrium Aim: To observe the effect of a change in conditions on a system at equilibrium and explain the effects observed through Le Châtelier’s principle. Equipment: 5 medium test tubes 1 test-tube rack 1 100-mL beaker 1 250mL beaker 1 dropper pipet 1 spatula 1 50-mL graduated cylinder 1 white card, to record Materials: Saturated potassium nitrate solution, KNO3 0.1 M Iron (III) chloride, FeCl3 0.1 M Potassium thiocyanate, KSCN Potassium chloride crystals, KCl Potassium nitrate crystals, KNO3 Ice Distilled water Procedure: Part A. Effect of Temperature on a Physical Equilibrium 1. Add 2- 3 mL of saturated potassium nitrate solution to a clean test tube. Using a spatula, add one crystal of potassium nitrate to the solution to act as a seed crystal. 2. Cool the test tube in a 250mL beaker of ice for 10 minutes. Record results. 3. Remove the test tube from the ice water and place it in the test-tube rack. Record what h... Posted by: Jack Drewes Limited version - please login or register to view the entire paper. |
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