C. A student analyzed a monoprotic acid and found that the experimentally determined equivalent weight of the acid was around 88. From the table, which acid can be the unknown? Succinic acid or lactic acid? Explain your reasoning.
Table of weak organic acid K2 Acid Acetic acid Chloroacetic acid K: none KI 1.8 x 10-5 1.4 x 10-3 1.4 x 10-4 Eq. Wt 60 none M.W 60 none none 95 Lactic acid 95 none none 90 Barbituric acid 90 1.3 x 10-4 none none 128 Benzoic acid 128 6.3 x 10-5 none none 122 Bromoacetic acid 122 1.38 x 10-3 none none 139 139 Sufanilic acid none 1.5 x 10-3 1.5 x 10-6 none 173 173 Uric acid none none 168 168 Fumaric acid 3.1 x 10-3 1.3 x 10-5 none 58 116 Maleic acid 1.5 x 10-2 2.6 x 10-7 none 58 116 Malic acid 9.0 x 10-4 2.5 x 10-5 none 67 134 Oxalic acid 5.4 x 10-2 5.1 x 10-5 none 63 126 1.3 x 10-3 3.1 x 10-6 none 83 166 4.0 x 10-14 none Phthalic acid Salicylic acid Succinic acid Tartaric acid 69 138 1.0 x 10-3 8.0 x 10-5 6.3 x 10-6 none 86.5 173 9.2 x 10-4 4.3 x 10-5 none 75 150 Citric acid 7.4 x 10-4 5.0 x 10-5 1.0 x10-6 64 192 Your report should include: 1) Name of organic compound from the list above 2) pK 3) Equivalent weight 4) Titration curve 5) 1st Derivative curve Repeat your experiments three (3) times and take an average of the closest two out of three values.
C. A student analyzed a monoprotic acid and found that the experimentally determined equivalent weight of the acid was a
-
answerhappygod
- Site Admin
- Posts: 899604
- Joined: Mon Aug 02, 2021 8:13 am
C. A student analyzed a monoprotic acid and found that the experimentally determined equivalent weight of the acid was a
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!