Answered: A carbohydrate contains 40.91% C, 4.58%…

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter13: The Chemistry Of Solutes And Solutions

Section: Chapter Questions

Problem 46QRT

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A carbohydrate contains 40.91% C, 4.58% H, and 54.51% O by mass. A solution of 11.2 g of this carbohydrate in 375 g of ethanol has a boiling point of 78.50°C. The boiling point of ethanol is 78.29°C, and K_b for ethanol is 1.23°C·kg/mol. What is the molecular formula of this carbohydrate? (Omit states-of-matter from your answer.)

Definition Definition Substance that constitutes everything in the universe. Matter consists of atoms, which are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction: solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).

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