Chem 15 lab report 2

Chem 15 lab report 2 - Tien Wei (Tom) Lee SID: 21846711...

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Tien Wei (Tom) Lee SID: 21846711 Chem 15 Lab Lab Section 101 GSI: Jamie Kulp Lab Partner: Yun Liang Experiment 2 Acid-Base Reactions: Identification of an unknown weak acid Introduction: The first part of this experiment allows students to learn about how to standardize a titratnt. The second part of the experiment allows students to titrate an unknown acid with the standardized titrant. From the data gathered, they should be able to figure out the identity of the unknown acid. Data: -Titration data Trial 1 Trial 2 Trial 3 amount of standardized NaOH added (in mL) pH amount of standardized NaOH added (in mL) pH amount of standardized NaOH added (in mL) pH 0 2.49 0 2.5 0 2.47 2.85 2.57 1.05 2.52 1 2.5 4.9 2.65 2 2.55 2.1 2.53 5.85 2.68 3.1 2.59 3.05 2.56 6.95 2.74 4 2.62 4.2 2.6 7.55 2.77 5.15 2.66 5.1 2.64 9.5 2.9 6.25 2.71 6.1 2.68 10.35 2.87 7.1 2.75 6.65 2.71 11.5 3.1 7.5 2.77 7.2 2.74 12.45 3.24 7.9 2.79 7.55 2.75 13.35 3.42 8.7 2.84 7.9 2.77 13.85 3.55 9.9 2.93 8.85 2.83
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14.15 3.69 10.8 3.02 9.6 2.89 14.5 3.9 11.6 3.11 10 2.91 14.6 3.96 12.6 3.26 11.4 3.06 14.85 4.16 13.5 3.5 12.2 3.17 15 4.35 14 3.69 13.3 3.38 15.1 4.45 14.25 3.82 14.4 3.82 15.25 4.58 14.4 3.9 14.65 3.98 15.45 4.7 14.7 4.12 14.8 4.14 15.73 4.84 14.8 4.29 14.9 4.23 15.85 4.94 14.9 4.42 15.05 4.35 16.25 5.09 15.1 4.57 15.2 4.5 17 5.3 15.3 4.73 15.4 4.65 18.05 5.51 15.5 4.88 15.6 4.75 19 5.67 15.7 4.96 15.7 4.83 20 5.8 16 5.03 15.8 4.88 20.9 5.91 16.1 5.1 15.9 4.97 21.45 5.98 16.35 5.18 16.12 5.05 22.15 6.04 16.8 5.3 17.2 5.34 22.55 6.11 17.2 5.4 17.8 5.46
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Chem 15 lab report 2 - Tien Wei (Tom) Lee SID: 21846711...

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