Lab 6 - Stoichiometry

Lab 6 - Stoichiometry - Date performed: 10/12/10 Name:...

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Date performed: 10/12/10 Name: Brian Lubnow Date Submitted: 10/19/10 Partner: Rebekah Balint Instructor: Alex Experiment 6: Stoichiometry Objective: The objective of this lab was to determine the stoichiometry of the reaction between sodium hypochlorite and potassium iodide in an aqueous solution. Experimental Data: Trial # V NaClO (mL ±0.5) V KI (mL ±0.5) T NaClO (°C ±0.01) T KI (°C ±0.01) T Final (°C ±0.01) 1 45 5 23.46 23.72 26.12 2 40 10 23.46 23.72 29.48 3 35 15 23.46 23.72 30.69 4 30 20 23.46 23.72 29.50 5 25 25 23.46 23.72 28.41 6 20 30 23.46 23.72 27.31 7 15 35 23.46 23.72 26.15 8 10 40 23.46 23.72 25.19 9 5 45 23.46 23.72 24.90 Sample Calculations New Uncertainty(addition/Subtraction): = + = . + . = . sr sa2 sb2 0 012 0 012 0 01 New Uncertainty(multiplication/division): = + srR2 saA2 sbB2 . = . + . = . sr 92 0 5452 0 7502 sr 0 02 = + Mole Fraction NaClO Volume NaClOVolume NaClO Volume KI = ± . ± . + ± . Mole Fraction NaClO 45mL 0 545mL 0 5 5mL 0 5 1
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Lab 6 - Stoichiometry - Date performed: 10/12/10 Name:...

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