What is the molality in mol/kg of a solution if the temperature difference AT between the solvent and the solution is 3.2? Kf for the solvent used (cyclohexane) is 20,8°C/m. Enter your answer with THREE decimals places, and do not write the unit. Example: 0.023 Do NOT use scientific notation. 0.154 A Moving to another question will save this response. Question 17 of 26

What is the molality in mol/kg of a solution if the temperature difference AT between the solvent and the solution is 3.2? Kf for the solvent used (cyclohexane) is 20,8°C/m. Enter your answer with THREE decimals places, and do not write the unit. Example: 0.023 Do NOT use scientific notation. 0.154 A Moving to another question will save this response. Question 17 of 26

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 12.98QE

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A patient has a “cholesterol count” of 214. Like manyblood-chemistry measurements,this result is measured inunits of milligrams per deciliter (mgdL1). Determine the molar concentration of cholesterol inthis patient’s blood, taking the molar mass of cholesterolto be 386.64gmol1. Estimate the molality of cholesterol in the patient’sblood. If 214 is a typical cholesterol reading among men inthe United States, determine the volume of such bloodrequired to furnish 8.10 g of cholesterol.
You have read that adding a solute to a solvent can both increase the boiling point and decrease the freezing point. A friend of yours explains it to you like this: The solute and solvent can be like salt in water. The salt gets in the way of freezing in that it blocks the water molecules from joining together. The salt acts like a strong bond holding the water molecules together so that it is harder to boil. What do you say to your friend?
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