At −12.0 ∘C−12.0 ∘C, a common temperature for household freezers, what is the maximum mass of maltitol (C12H24O11) you can add to 2.50 kg2.50 kg of pure water and still have the solution freeze? Assume that maltitol is a molecular solid and does not ionize when it dissolves in water. Consult the table of ?fKf values. SolventFormulaK f value*(°C/ m )Normal freezingpoint ( °C) K b value(°C/ m )Normal boilingpoint ( °C) water H 2 O 1.86 0.00 0.512 100.00 benzene C 6 H 6 5.12 5.49 2.53 80.1 cyclohexane C 6 H 12 20.8 6.59 2.92 80.7 ethanol C 2 H 6 O 1.99–117.3 1.22 78.4 carbon tetrachloride CCl 4 29.8 –22.9 5.03 76.8 camphor C 10 H 16 O 37.8 176

The molecular mass of Maltitol = 344g Freezing temperature = -12oC m = 2.5kg From the table, The…

Answered: At −12.0 ∘C−12.0 ∘C, a common…

Introduction to Chemical Engineering Thermodynamics

8th Edition

ISBN:9781259696527

Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Chapter1: Introduction

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At −12.0 ∘C−12.0 ∘C, a common temperature for household freezers, what is the maximum mass of maltitol (C₁₂H₂₄O₁₁) you can add to 2.50 kg2.50 kg of pure water and still have the solution freeze? Assume that maltitol is a molecular solid and does not ionize when it dissolves in water. Consult the table of ?fKf values.

Solvent	Formula	K _f value* (°C/ m )	Normal freezing point ( °C)	K _b value (°C/ m )	Normal boiling point ( °C)
water	H ₂ O	1.86	0.00	0.512	100.00
benzene	C ₆ H ₆	5.12	5.49	2.53	80.1
cyclohexane	C ₆ H ₁₂	20.8	6.59	2.92	80.7
ethanol	C ₂ H ₆ O	1.99	–117.3	1.22	78.4
carbon tetrachloride	CCl ₄	29.8	–22.9	5.03	76.8
camphor	C ₁₀ H ₁₆ O	37.8	176

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