#2 Le Chatelier's Principle

#2 Le Chatelier's Principle - solutions than the solution...

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Aaron King 660556233 Section 1 February 12, 2008 Exploring Le Chatelier’s Principle 1. ++ -→ Co2 4Cl - CoCl42 2. When water was added, the solution favored the reactants, but when the concentrated HCl was added, the reaction favored the products. The more the reaction favored the reactants, the solution was light purple, but when HCl was added, and the dark purple reflected the products. 3. When heat was added to the system, the reaction went to the products. Therefore the reaction is endothermic. 4. Adding NaCl will force the reaction towards the products because NaCl is soluble in water and Cl - appears in the reactants. ++ -+ -+ + Co2 2Cl 2NaCl CoCl42 Na 5. The results in well 7 th well differ from that of those in the 6 th well because in the 6 th well the addition of water originally sends the solution towards the reactants, so the solution already shifted toward the lighter color. When the solution was disturbed with the NaCl, the already disturbed solution had more concentrations of all the
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Unformatted text preview: solutions than the solution in cell 7. 6. Ethanol has very strong hydrogen intermolecular bonds. 7. + → CoCl2 2AgNO3 2 + ( ) AgCl Co NO3 2-+ +→ 2Cl 2Ag 2AgCl 8. A possible error could have occurred in the contamination of the wells. Because of the scaled down experimentation area, any small contamination could affect results severely. Another possible error could have occurred in the mixing process. Because of the format of the cells, it was difficult to properly stir many of the solutions. If a solution needed a more intense stir, there is a possibility that the solution did not properly mix and the solution did not go to equilibrium. 9. Le Chatelier’s principle can predict the way a solution will act when different disturbances occur which include the addition of an already present solution, addition of a foreign solution, or simply changing the temperature of the system....
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This lab report was uploaded on 04/07/2008 for the course CHEM 1200 taught by Professor Mcintosh during the Spring '08 term at Rensselaer Polytechnic Institute.

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#2 Le Chatelier's Principle - solutions than the solution...

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