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Determine which polyprotic acid from the list is the unknown acid.

Determine which polyprotic acid from the list is the unknown acid.

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter14: Acids And Bases
Section: Chapter Questions
Problem 103QRT
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Determine which polyprotic acid from the list is the unknown acid.

Tanyia Chery Results: 1. Value of pKal from graph. 25 2. Value of pKa2 from graph. pla,=-logka %3D 3. Value of Kal- log ka %3D 4. Value of Ka2. 7=-logka 5. Using the list of polyprotic acids, below, determine the identity of the unknown acid. Name of Acid K22 Acetic acid 1.8 x 105 Boric acid 7.3 x 10-10 1.8 x 10-13 Itaconic acid 1.4 x 104 3.6 x 106 Oxalic acid 5.9 x 102 6.5 x 105 7.3 x 103 6.2 x 10% Phosphoric acid 1.0 x 103 4.5 x 105 Tartaric acid 1.0 x 103 4.0 x 10-14 Salicylic acid 7.9 x 105 1.6 x 10-12 Ascorbic acid 1.5 x 10-10 1.4 x 10+ D/L Aspartic acid
Transcribed Image Text:Tanyia Chery Results: 1. Value of pKal from graph. 25 2. Value of pKa2 from graph. pla,=-logka %3D 3. Value of Kal- log ka %3D 4. Value of Ka2. 7=-logka 5. Using the list of polyprotic acids, below, determine the identity of the unknown acid. Name of Acid K22 Acetic acid 1.8 x 105 Boric acid 7.3 x 10-10 1.8 x 10-13 Itaconic acid 1.4 x 104 3.6 x 106 Oxalic acid 5.9 x 102 6.5 x 105 7.3 x 103 6.2 x 10% Phosphoric acid 1.0 x 103 4.5 x 105 Tartaric acid 1.0 x 103 4.0 x 10-14 Salicylic acid 7.9 x 105 1.6 x 10-12 Ascorbic acid 1.5 x 10-10 1.4 x 10+ D/L Aspartic acid
Data Table: Volume Base Added Volume Base Added Volume Base Hd Hd Added Hd 0.0 mL 13.0 mL 6.50 26.0 mL 0.5 mL bの1 13.5 mL 26.5 mL 1.0 mL 14.0 mL |1.51 L7の のLつ 27.0 mL 1.5 mL 14.5 mL 27.5 mL 11.54 2.0 mL 15.0 mL 28.0 mL 11.57 2.5 mL 15.5mL 28.5 mL 3.0 mL 2し1 16.0 mL .82 1.86 7.03 29.0 mL 3.5 mL 16.5 mL 29.5 mL 11.65 7.13 7.25 4.0 mL 17.0 mL 30.0 mL 4.5mL 1.96 17.5 mL 7.37 30.5mL 5.0 mL 2.02 18.0 mL 7.51 31.0mL 18.5 mL 31.5 mL IL'L 8.05 5.5 mL 6.0 mL 2,15 19.0 mL 32.0 mL 6.5 mL 2.25 19.5 mL 32.5 mL 33.0 mL しL1 2.34 20.0 mL 10.21 10.56 7.0mL 20.5 mL 33.5mL 7.5 mL 18:11 I1.83 21.0 mL 34.0 mL 8.0 mL 21.5 mL 16.88 34.5 mL 8.5 mL 35.0 mL 22.0 mL 9.0 mL b699 9.5 mL 3.62 22.5 mL 5.28 23.0 mL 11.14 10.0 mL |1.21 11.26 23.5 mL 10.5 mL 24.0 mL 11.0 mL 11.31 しb'S 24.5 mL 11.5 mL 11.36 25.0 mL 12.0mL 6.28 11.40 25.5 mL 12.5 mL 6.39
Transcribed Image Text:Data Table: Volume Base Added Volume Base Added Volume Base Hd Hd Added Hd 0.0 mL 13.0 mL 6.50 26.0 mL 0.5 mL bの1 13.5 mL 26.5 mL 1.0 mL 14.0 mL |1.51 L7の のLつ 27.0 mL 1.5 mL 14.5 mL 27.5 mL 11.54 2.0 mL 15.0 mL 28.0 mL 11.57 2.5 mL 15.5mL 28.5 mL 3.0 mL 2し1 16.0 mL .82 1.86 7.03 29.0 mL 3.5 mL 16.5 mL 29.5 mL 11.65 7.13 7.25 4.0 mL 17.0 mL 30.0 mL 4.5mL 1.96 17.5 mL 7.37 30.5mL 5.0 mL 2.02 18.0 mL 7.51 31.0mL 18.5 mL 31.5 mL IL'L 8.05 5.5 mL 6.0 mL 2,15 19.0 mL 32.0 mL 6.5 mL 2.25 19.5 mL 32.5 mL 33.0 mL しL1 2.34 20.0 mL 10.21 10.56 7.0mL 20.5 mL 33.5mL 7.5 mL 18:11 I1.83 21.0 mL 34.0 mL 8.0 mL 21.5 mL 16.88 34.5 mL 8.5 mL 35.0 mL 22.0 mL 9.0 mL b699 9.5 mL 3.62 22.5 mL 5.28 23.0 mL 11.14 10.0 mL |1.21 11.26 23.5 mL 10.5 mL 24.0 mL 11.0 mL 11.31 しb'S 24.5 mL 11.5 mL 11.36 25.0 mL 12.0mL 6.28 11.40 25.5 mL 12.5 mL 6.39
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