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Lab 2-1 - P age 1 of 1 Name and ID Mackenzie Smith Quiz...

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Page 1 of 1 Name and ID Mackenzie Smith 1020488 Quiz Section AI Lab Partner: Julia Wachs Grading: 60 pt s. (Lab not ebook pages are wort h 5 pt s - t ot al for report and not ebook is 65 pt s Stock Solutions Soln. Conc. Units 0.0005 M 0.010 M 0.040 M HCl 0.100 M Experiment Test Tube #1     Test Tube #2 Temp. Run  Celsius Time Rate # mL m: mL mL mL C sec. M/s 1 0.75 0.50 0.25 0.50 0.50 26 168 9.9E-08 2** 0.50 0.50 0.50 0.50 0.50 24.9 153 1.1E-07 3 0.25 0.50 0.75 0.50 0.50 24.5 83 2.0E-07 4 0.00 0.50 1.00 0.50 0.50 25.1 68 2.5E-07 5 0.75 0.50 0.50 0.25 0.50 25.4 154.5 1.1E-07 6** 0.50 0.50 0.50 0.50 0.50 25 128 1.3E-07 7 0.75 0.50 0.50 0.75 0.50 25.5 71 2.3E-07 8 0.50 0.50 0.50 1.00 0.50 24.7 67 2.5E-07 9 0.25 0.50 0.50 0.50 0.25 26.4 285 5.8E-08 10** 0.00 0.50 0.50 0.50 0.50 25.9 97 1.7E-07 11 0.75 0.50 0.50 0.50 0.75 24.2 28 6.0E-07 12 0.50 0.50 0.50 0.50 1.00 25.3 17 9.8E-07 13 0.50 0.50 0.50 0.50 0.50 0 563 3.0E-08 14* 0.75 0.50 0.50 0.50 0.25 25.3 64 2.6E-07 15* 0.75 0.50 0.50 0.50 0.25 0 324 5.1E-08 * Measurements made with a drop of 1.0 mM Ammonium Molybdate ** Repeated measurements for calculating k and Ea A drop of 1% Starch indicator solution is included in each run. Experiment Temp Initial Concentrations (M) Time Rate Run # Celsius sec M/sec Run 1 26 0.0001 0.0010 0.0200 0.0080 168 9.9E-08 1 pt Run 2 24.9 0.0001 0.0020 0.0200 0.0080 153 1.1E-07 Run 3 24.5 0.0001 0.0030 0.0200 0.0080 83 2.0E-07 Run 4 25.1 0.0001 0.0040 0.0200 0.0080 68 2.5E-07 1 pt X-axis Y-axis log(Rat e) -3.0 -7.0 -2.7 -6.95861 -2.5 -6.69897 -2.4 -6.602059 2 pt s 1 pt Experiment Temp Initial Concentrations (M) Time Rate Run # Celsius sec M/sec Run 5 25.4 0.0001 0.0020 0.0200 0.0040 154.5 1.1E-07 2 pt s Run 6 25 0.0001 0.0020 0.0200 0.0080 128 1.3E-07 Run 7 25.5 0.0001 0.0020 0.0200 0.0120 71 2.3E-07 Run 8 24.7 0.0001 0.0020 0.0200 0.0160 67 2.5E-07 X-axis Y-axis log(Rat e) -2.4 -7.0 -2.1 -6.886056 -1.9 -6.63827 -1.8 -6.602059 2 pt s 1 pt Experiment Temp Initial Concentrations (M) Time Rate Run # Celsius sec M/sec Run 9 26.4 0.0001 0.0020 0.0100 0.0080 285 5.8E-08 2 pt s Run 10 25.9 0.0001 0.0020 0.0200 0.0080 97 1.7E-07 Run 11 24.2 0.0001 0.0020 0.0300 0.0080 28 6.0E-07 Run 12 25.3 0.0001 0.0020 0.0400 0.0080 17 9.8E-07 X-axis Y-axis log(Rat e) -2.0 -7.2 -1.7 -6.76955 -1.5 -6.221848 -1.4 -6.00877 2 pt s 1 pt Experiment Initial Concentrations (M) Time Rate k Run # sec M/sec Run 2 0.0001 0.0020 0.0200 0.0080 563 3.0E-08 4.7E+00 Run 6 0.0001 0.0020 0.0200 0.0080 64 2.6E-07 4.1E+01 Run 10 0.0001 0.0020 0.0200 0.0080 324 5.1E-08 8.0E+00 . Average: 17.76 Std Deviation: 2.3201941258 Units: L^3/(mol^3*s) 2 pt s Activation Energy: Uncatalyzed Experiment Temp Initial Concentrations (M) Time Rate Run # Celsius sec M/sec Ave * 25.2667 0.0001 0.0020 0.0200 0.0080 126 1.4E-07 1 pt Run 13 0 0.0001 0.0020 0.0200 0.0080 563 3.0E-08 * Average value from runs # 2,6, & 10. 2 pt s 19.645 kJ/mol 2 pt s Activation Energy: Catalyzed with Ammonium Molybdate  Calculated from catalyzed runs at different temperatures Experiment Temp Initial Concentrations (M) Time Rate Run # Celsius sec M/sec Run 14 25.3 0.0001 0.0020 0.0100 0.0080 64 2.6E-07 1 pt Run 15 0 0.0001 0.0020 0.0100 0.0080 324 5.1E-08 43.590 kJ/mol 2 pt s Part II: Crystal Violet-Hydroxide Reaction Concent rat ion of st ock solut ions 1.00E-04 M 565 nm 0.10 M Molar Absorpt ivit y Dat a t o make 25 mL of 1.0 x 10-5 M CV+ is 2.5 mL 10.0 1.0E-06 7.0E-02 4.0 2.5E-06 3.4E-01 2.0 5.0E-06 5.8E-01 1.0 1.0E-05 5.0E-01 1 pt slope 41761.71352 y-int 1.784E-01 2.00E-05 2 pt s Run Number NaOH (mL) mLT ot al 1 2 0.5 0.5 3 5.00E-06 0.0667 2 1.5 1 0.5 3 5.00E-06 0.0500 3 1 1.5 0.5 3 5.00E-06 0.0333 4 0.5 2 0.5 3 5.00E-06 0.0167 *Final [CV+] and [NaOH] column "I" next to the appropriate plot and update any column/table titles that contain "?"). Run 1 Run 2 2 pt s T ime (s) Absorbance T ime (s) Absorbance 5 0.172 4.12E-06 -12.399 2.427E+05 25 0.190 4.55E-06 219780.220 10 0.168 4.02E-06 -12.424 2.488E+05 30 0.177 4.24E-06 235849.057 20 0.149 3.57E-06 -12.543 2.801E+05 40 0.160 3.83E-06 261096.606 30 0.132 3.16E-06 -12.665 3.165E+05 50 0.145 3.47E-06 288184.438 40 0.117 2.80E-06 -12.786 3.571E+05 60 0.132 3.16E-06 277777.778 50 0.100 2.40E-06 -12.940 4.167E+05 70 0.115 2.75E-06 363636.364 60 0.089 2.31E-06 -12.978 4.329E+05 80 0.103 2.24E-06 446428.571 70 0.076 1.82E-06 -13.217 5.495E+05 90 0.093 2.23E-06 448430.493 80 0.067 1.60E-06 -13.346 6.250E+05 100 0.081 1.94E-06 515463.918 90 0.059 1.41E-06 -13.472 7.092E+05 110 0.072 1.72E-06 581395.349 100 0.051 1.22E-06 -13.616 8.197E+05 120 0.065 1.56E-06 642025.641 110 0.045
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