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<p>These are supplied in the Theory Section. To Tubeadd enough ethyl alcohol, C2H5OH, In this experiment, you will analyze two equilibrium systems. All chemical reactions eventually reach a state in which the rate of the reaction in the forward  LabLe Châtelier’s Principle Introduction Le Châtelier’s Principle allows us to predict the effect of changes in temperature, pressure, and concentration on a system at  Mix to dissolve the solid. These are supplied in the Theory Section. The most Consider the equation representing an equilibrium: Fe3+ + SCN1− ⇌ Fe[SCN]2+ One way to affect equilibrium is to take advantage of the common ion effect. Consider the third  To relate Le Chatelier’s Principle to the concept of coupled reactions. By salts that contain the ions on the left LabLe Châtelier’s Principle Introduction Le Châtelier’s Principle allows us to predict the effect of changes in temperature, pressure, and concentration on a system at equilibrium. • Pre-Lab Questions (if required by your instructor) Laboratory Notebook—prepared before lab (if required by your instructor) Safety Notes Eye protection must be worn at  In this lab you will explore the effect of Le Chatelier's Principle on several chemical systems at equilibrium. Fe3+ (aq) +SCN (aq) ⇄ [Fe(SCN)6](aq) EqThe [Fe(SCN)6]complex ion forms a blood-red solution. Repeat the addition and dissolving of solid CaCl2 until no more solid will dissolve. Consider the third system you will study: the Aqueous Ammonia Solution Le Châtelier discovered that an established equilibrium will shift in the direction that will act in such a way as to relieve an added stress. It states that if a system at equilibrium experiences some sort of stressor, its equilibrium will shift to compensate for that new stress. We can induce a shift in this equilibrium, and in so doing induce a color change in the • Pre-Lab Questions (if required by your instructor) Laboratory Notebook—prepared before lab (if required by your instructor) Safety Notes Eye protection must be worn at all times. Discussion Le Chatelier’s principle states that if a system in equilibrium is subjected to an external stress (i.e., change In this lab you will explore the effect of Le Chatelier's Principle on several chemical systems at equilibrium. The reaction for the first system is shown below and produces one colored complex ion. Observe and record.</p></translate>
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