Lab 8 Write Up - Chemical Equilibrium Laboratory#8 Natasha Ingraham Kyle Daron Robin McGown Chemistry 112 Lab 002 1 Research Questions a What is the Kc

Lab 8 Write Up - Chemical Equilibrium Laboratory#8 Natasha...

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Chemical Equilibrium // Laboratory #8 Natasha Ingraham Kyle Daron Robin McGown Chemistry 112 // Lab 002 October 29, 2013
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1. Research Questions: a. What is the Kc for each of the reaction tubes for the room temperature experiment? And what is the average Kc for the room temperature reactions? b. What’s the sign for the delta H for each reaction? c. What is the effect of adding/removing reactants to/from the equilibrium mixture? 2. Observations and Results Table 1: Equilibrium Constant Determination Table 2: Le Chatelier’s Principle Observations Effect A_470 Change in [FeSCN^2+] Adding Heat Energy Removing Heat Energy Adding Fe(NO_3)_3 Adding EDTA 3. Claims: a. The Kc for each reactions of the test tubes are as follows 1-4: 340.58, 255.34, 209.4, 178.68. The average Kc for the four test tubes is ______________. b. The sign for the delta H for each reactions is c. The effects for adding/removing reactants from/to the equilibrium mixture were varied. Adding heat energy shifted the reaction to the reactant, while removing heat energy shifted it towards the products. Adding EDTA shifted it towards reactants, and adding
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