a) What drawback may you observe if you do use water to recrystallize solid Z? b) Now we are left with ethanol - what drawback would you observe if you use it alone to recrystallize solid Z?

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
Section: Chapter Questions
Problem 1.1P
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You have been provided an impure sample of
a known solid Z that has a pure melting
point of 90-92°C. Its solubility in two
common solvents are shown below:
Boiling Solubility of Solubility of
Z at Boiling
Temperature Point
Solvent Point Z at Room
|(°C)
Ethanol 78
29.4g/100mL 166g/100mL|
Water 100
1.7g/100mL 150g/100mL
Transcribed Image Text:You have been provided an impure sample of a known solid Z that has a pure melting point of 90-92°C. Its solubility in two common solvents are shown below: Boiling Solubility of Solubility of Z at Boiling Temperature Point Solvent Point Z at Room |(°C) Ethanol 78 29.4g/100mL 166g/100mL| Water 100 1.7g/100mL 150g/100mL
a) What drawback may you observe if you do
use water to recrystallize solid Z?
b) Now we are left with ethanol - what
drawback would you observe if you use it
alone to recrystallize solid Z?
Transcribed Image Text:a) What drawback may you observe if you do use water to recrystallize solid Z? b) Now we are left with ethanol - what drawback would you observe if you use it alone to recrystallize solid Z?
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