lab10 - 3 Lab10 Part A mL of NaOH added 0 0.5 1 2 2.5 3 3.5...

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3 Lab10 A2 11/4/2009 Part A mL of NaOH added pH mL of NaOH added at equiv point=33mL 0 2.7 0.5 2.93 1 3 Identification: Aceteic Acid 2 3.31 Molarity of Acid: 2.75e-5 2.5 3.39 3 3.49 3.5 3.53 4 3.61 4.5 3.67 5 3.73 5.5 3.8 6 3.86 6.5 3.92 7 3.96 7.5 4 8 4.04 8.5 4.12 9 4.16 10 4.18 10.5 4.27 11 4.31 Part B 11.5 4.27 12 4.33 10 Drops of 1M NaOH 12.5 4.39 13 4.37 Starting pH: 4.66 13.5 4.39 14 4.41 10 drops of 1M HCl 14.5 4.45 15 4.53 Starting pH:4.66 15.5 4.59 16 4.55 NaOH until buffer capaicty is reached 16.5 4.63 17 4.67 Starting pH: 4.66 17.5 4.65 change in pH: 6.27 18 4.67 19 4.76 19.5 4.82 20 4.8 25 mL of D.I. water 20.5 4.84 Starting pH: 4.66 21 4.86 21.5 4.92 pK a =4.6 K a =2.5e-5 0 5 10 15 20 0 2 4 6 8 10 12 14 pH vs mL of Na mL of NaOH add pH
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22 4.88 22.5 4.9 23 4.94 23.5 4.96 24 5.02 24.5 5.1 25 5.1 25.5 5.14 26 5.22 27 5.27 28 5.37 29 5.47 30 5.63 30.5 5.78 31 5.84 31.5 6.1 32 6.33 32.5 6.8 33 7.86 33.5 11.1 34 11.45 34.5 11.65 35 11.73 35.5 11.9 36 12.06 36.5 12.1 37 12.06 37.5 12.18 38 12.14 38.5 12.22 39 12.2 39.5 12.27
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lab10 - 3 Lab10 Part A mL of NaOH added 0 0.5 1 2 2.5 3 3.5...

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