Pure benzoic acid melts at 122 °C and its heat of fusion is 147.34 J g. If the corrected fractions melted are 0.25 at 394.4 K and 0.50 at 394.9 K, estimate the purity of the benzoic acid. The universal gas constant is 8.314 J K- mol. [assume 273 K = 0 °C]

Pure benzoic acid melts at 122 °C and its heat of fusion is 147.34 J g. If the corrected fractions melted are 0.25 at 394.4 K and 0.50 at 394.9 K, estimate the purity of the benzoic acid. The universal gas constant is 8.314 J K- mol. [assume 273 K = 0 °C]

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter10: Solutions

Section: Chapter Questions

Problem 67QAP

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Pure benzoic acid melts at 122 °C and its heat of fusion is 147.34 J g. If the corrected
fractions melted are 0.25 at 394.4 K and 0.50 at 394.9 K, estimate the purity of the
benzoic acid. The universal gas constant is 8.314 J K- mol". [assume 273 K = 0 °C]

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