CHM exp report 7 - CHM 151 Experiment Report Student's name...

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CHM 151 Experiment Report Student’s name : Lai Shin Zie ID : I08001607 Partner’s name : Nicholas Chai ID : I08001107 Section : 5A Lecturer’s name : Dr. Palsan A/L Sannasi @ Sannach Due date : 04 July 2008
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13 June 2008 Experiment 7 : Le Chatelier’s Principle Aim : 1. To determine the equilibrium of Fe 3+ and SCN - with Fe(SCN) 2+ . 2. To determine the equilibrium of Ni 2+ and NH 3 with Ni(NH 3 ) 6 2+ . 3. To determine the equilibrium involving solubility of inorganic salts. 4. To determine the equilibrium of Co 2+ and Cl - with CoCl 4 2- . Procedure : Please refer to the laboratory manual page 52 to 53. Results : A. Equilibrium of Fe 3+ and SCN - with Fe(SCN) 2+ Color of tube 1 : Brick red Color of tube 2 : Dark red Color of tube 3 : No change B. Equilibrium of Ni 2+ and NH 3 with Ni(NH 3 ) 6 2+ Color before addition of NH 3 : Light green Color after addition of NH 3 : Light blue Color after addition of HCl : Translucent green C. Equilibrium involving solubility of inorganic salts (a) Solubility of Barium Oxalate Color of BaCl 2 solution : Colorless Color of BaC 2 O 4 precipitate : White Color after addition of HCl : Colorless Color after addition of NH 3 : Chalky
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(b) Solubility of Copper (II) Hydroxide Color of CuCl 2 solution : Translucent blue Color of Cu(OH) 2 precipitate : Blue Color after addition of HCl : Translucent blue Color after addition of NaOH : Translucent blue D. Equilibrium of Co 2+ and Cl - with CoCl 4 2- Color of Co(NO 3 ) 2 solution : Pink Color after addition of HCl : Sky blue Color after addition of H 2 O : Purple Color after heating : Blue
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This note was uploaded on 06/21/2009 for the course CHEM 130 taught by Professor Kia during the Spring '09 term at Abraham Baldwin Agricultural College.

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CHM exp report 7 - CHM 151 Experiment Report Student's name...

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