Lab report 8 - Lab report 8 Equilibrium Constant Determination Table Test tube 1 Fe3]i 0.0010 M SCN]i 0.0004 M 2 0.0010 M 0.0006 M 3 0.0010 M 0.0008 M 4

Lab report 8 - Lab report 8 Equilibrium Constant...

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Lab report 8 Equilibrium Constant Determination Table Test tube [ Fe 3+ ]i [ SCN ]i [ Fe 3+ ] eq [ SCN ] eq [FeSCN 2+ ] eq Kc 1 0.0010 M 0.0004 M 0.000943 M 0.000343 M 0.000057 M 176 2 0.0010 M 0.0006 M 0.000935 M 0.000535 M 0.000065 M 130 3 0.0010 M 0.0008 M 0.000931 M 0.000931 M 0.000069 M 101 4 0.0010 M 0.0010 M 0.000925 M 0.000925 M 0.000075 M 88 Kc Average 124 Le Chatelier’s Principle Observation Table Effect Absorbance (0.455 Au) Change in FeSCN 2+ Adding Heat energy Decreased 0.405 Au Decreased Removing Heat energy Increased 0.579 Au Increased Adding Fe(NO3)3 Increased 2.174 Au Increased Adding EDTA Decreased 0.329 Au Decreased Claim and Evidence: What is the Average Kc for the reaction at room temperature? The Average Kc of the reaction at the room temperature of 23.9C was 124. What is the Signs of Delta H for the reaction? The Sign of Delta H is Negative and the reaction is exothermic because when we removed heat the product increased and the equilibrium shifted toward the product. What happens to the equilibrium when we add reactant? Adding the reactant will increase product formation and moves the equilibrium toward the product.
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