5) While making an inventory of the Chemistry Laboratory, Din Djarin found a dusty amber bottle hidden in one of the cabinets and the bottle has the following label: "Compound R with empirical formula C3H302. (empirical Mw = 71 g/mol), in 50.0 g of ethanol" A preliminary test concluded that this solution boils at 79.03°C and after evaporating the ethanol it is found that there are 5.5 g of compound R. a) Calculate the molality of the solution. (Tb of alcohol = 78.4 °C, Kb = 1.22 °C/m). mol m= kg A b) Calculate the molar mass of the solute. t c) What is its molecular formula?.

5) While making an inventory of the Chemistry Laboratory, Din Djarin found a dusty amber bottle hidden in one of the cabinets and the bottle has the following label: "Compound R with empirical formula C3H302. (empirical Mw = 71 g/mol), in 50.0 g of ethanol" A preliminary test concluded that this solution boils at 79.03°C and after evaporating the ethanol it is found that there are 5.5 g of compound R. a) Calculate the molality of the solution. (Tb of alcohol = 78.4 °C, Kb = 1.22 °C/m). mol m= kg A b) Calculate the molar mass of the solute. t c) What is its molecular formula?.

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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