postlab9 - The Nature of Acids and Bases - Who's Strong and...

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The Nature of Acids and Bases - Who's Strong and Who's Weak? Excel Template Chem1310 Laboratory (C) 2003-2007 Tatsuya Maehigashi Chem1310 Margin Name: Ann Dysart Partner's Name: Kyle Section: Chem 1310 L1 Date of Experiment Performed: 10/26/2007 Date of Report Prepared: 11/2/2007 The Nature of Acids and Bases - Who's Strong and Who's Weak? A. Understanding pH Indicators Tabulated Data/Results 6 Endpoint Determination HIn, Acid Form In - → HIn Weak Acid Indicator Color pH Color pH Color pH Ka Color pH Ka Phenolphthalein clear 6.43 magenta 8.90 clear 8.40 1.0E+00 1.0E-01 pink 8.58 2.6E-09 2.6E-08 Bromocresol Green light blue 8.66 blue 10.51 light blue 9.20 1.0E+00 1.0E-01 blue 9.51 3.1E-10 3.1E-09 Bromothymol Blue light yellow 8.46 light blue 10.74 yellow 9.51 3.1E-10 3.1E-11 blue 9.88 1.3E-10 1.3E-09 Universal Indicator yellow 8.95 purple 10.08 yellow 8.95 1.1E-09 1.1E-10 purple 9.24 5.8E-10 5.8E-09 Supporting Calculations B. Acid and Base Strength Tabulated Data/Results <B-2> pH paper Univ. Indicator pH meter Product/Compound Acid/Base Name Color pH Color pH pH .1 M HCl Hydrochloric Acid red 2.0 red
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This note was uploaded on 04/20/2008 for the course CHEM 1310 taught by Professor Cox during the Fall '08 term at Georgia Institute of Technology.

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postlab9 - The Nature of Acids and Bases - Who's Strong and...

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