ChemLab1 - Date Performed: 2/20/08 Date Submitted: 2/27/08...

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Date Performed: 2/20/08 Name: Chris Barrett Date Submitted: 2/27/08 Partner: Sercan Gundogdu Instructor: Chuck Carfagna Measurement 1 Objective: To determine the stoichiometry of the reaction between sodium hypochlorite (NaClO) and potassium iodide (KI) in aqueous solution. Experimental Data: See Spreadsheet Sample Calculations: Mole fraction NaClO= Volume NaClO Volume NaClO + Volume KI Tintial= (T1V1)+(T2V2) (See Spreadsheet) (V1+V2) Delta T = Tf-Ti (see spreadsheet) Results and Conclusions: Our results showed that when the ratio of NaClO to KI was at 35:15 mL, there was the largest Delta T. From either direction, they lead up to this amount, so that
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when graphed it created some-what triangle like depiction of the data. At the 35:15 ratio, A Delta T of 7.61 was the largest recorded amount. We discovered from mixing different ratio’s of the two chemicals that there is a certain point at which Delta T will be at its highest, rather than being constant throughout the experiment. Discussion of Experimental Uncertainty
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ChemLab1 - Date Performed: 2/20/08 Date Submitted: 2/27/08...

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