Lab 9 Data Table

Lab 9 Data Table - -0.15 Conductivity (S/cm) Type of...

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21:03:14 01/23/2012 Name: Liz Zharovsky Bench: C19 Lab day: Tuesday Date: 11/22/2011 Partner: Siqi Liu Section: 2 TABLE OF DATA AND RESULTS Electrical conductivity Solution Ionic equation 0.05 M NaCl 5439 strong 9303 strong 12430 strong 0.05 M HCl 18290 strong 0.05 M KOH 10130 strong 12390 weak 10390 weak 282.2 weak 1.494 N/A non 182.1 weak ethanol 0.000 N/A non Freezing: pure t-butanol Weight of t-butanol (g): 10.00 1st cooling 2nd cooling - before freezing -0.40 -0.31 - after freezing -0.25 -0.29 25.6 24.7 25.1 +/- 0.01 Freezing: liquid in t-butanol Name of liquid: Isopropyl Alcohol Weight of liquid(g): 0.3158 1st cooling 2nd cooling - before freezing -0.20 -0.20 - after freezing -0.02 -0.01 19.5 19.5 19.5 +/- -0.01 Molecular weight (M.W.) of liquid 5.6 51 60.1 REA:
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Unformatted text preview: -0.15 Conductivity (S/cm) Type of electrolyte NaCl --> Na + + Cl-0.05 M CaCl 2 CaCl 2--> Ca +2 + 2Cl-0.05 M AlCl 3 AlCl 3--> Al +3 + 3Cl-HCl --> H + + Cl-KOH --> K + + OH-0.05 M H 2 C 2 O 4 H 2 C 2 O 4--> 2H + + C 2 O 4-2 0.05 M K 2 C 2 O 4 K 2 C 2 O 4--> 2K + + C 2 O 4-2 0.05 M CH 3 COOH CH 3 COOH --> H + + CH 3 COO-H 2 O distilled H 2 O tap H 2 O --> H + + OH-Lin. fit slope ( o C/s) Freezing pt. ( o C) Average freezing point, T f o ( o C) Lin. fit slope ( o C/s) Freezing pt. ( o C) Average freezing point, T f ( o C) T = T f o - T f ( o C): MW of liquid from freezing (g/mol): True MW of liquid (g/mol):...
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