The elemental analysis of an organic solid extracted from gum arabic (a gummy substance used in adhesives, inks, and pharmaceuticals) showed that it contained 40.0 percent by mass C, 6.7 percent by mass H, and 53.3 percent by mass O. A solution of 0.523 g of the solid in 28.1 g of the solvent diphenyl °C gave a freezing-point depression of 1.24 °C. Calculate the molar mass and molecular formula of the solid. (K, for diphenyl is 8.00 —.) m

The elemental analysis of an organic solid extracted from gum arabic (a gummy substance used in adhesives, inks, and pharmaceuticals) showed that it contained 40.0 percent by mass C, 6.7 percent by mass H, and 53.3 percent by mass O. A solution of 0.523 g of the solid in 28.1 g of the solvent diphenyl °C gave a freezing-point depression of 1.24 °C. Calculate the molar mass and molecular formula of the solid. (K, for diphenyl is 8.00 —.) m

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter12: Solutions

Section: Chapter Questions

Problem 12.95QE

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