10020080Solubility limit15060Liquid solution (syrup)Liquidsolution40solid100sugar2050Sugar20406080100Water 10080604020Composition (wt%)Figure Q5 Sugar – water phase diagramTemperature (°C)Temperature (°F) Consider the sugar-water phase diagram of Figure Q5.(a) How much sugar will dissolve in 500 g of water at 80 °C?(b) If the saturated liquid solution in part (a) is cooled to 20 °C, some of the sugar willprecipitate out as a solid. What will be the composition of the saturated liquid solution (inwt. % sugar) at 20 °C?(c) How much of the solid sugar will come out of solution upon cooling to 20 °C?

Introduction: Phase diagram shows the physical state of a substance at different temperature and…

100 200 80 Solubility limit 150 60 Liquid solution (syrup) Liquid solution 40 solid 100 sugar 20 50 Sugar 20 40 60 80 100 Water 100 80 60 40 20 Composition (wt%) Figure Q5 Sugar – water phase diagram Temperature (°C)

100 200 80 Solubility limit 150 60 Liquid solution (syrup) Liquid solution 40 solid 100 sugar 20 50 Sugar 20 40 60 80 100 Water 100 80 60 40 20 Composition (wt%) Figure Q5 Sugar – water phase diagram Temperature (°C)

Macroscale and Microscale Organic Experiments

7th Edition

ISBN:9781305577190

Author:Kenneth L. Williamson, Katherine M. Masters

Publisher:Kenneth L. Williamson, Katherine M. Masters

Chapter5: Distillation

Section: Chapter Questions

Problem 5Q

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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

100%

100
200
80
Solubility limit
150
60
Liquid solution (syrup)
Liquid
solution
40
solid
100
sugar
20
50
Sugar
20
40
60
80
100
Water 100
80
60
40
20
Composition (wt%)
Figure Q5 Sugar – water phase diagram
Temperature (°C)
Temperature (°F)

Consider the sugar-water phase diagram of Figure Q5.
(a) How much sugar will dissolve in 500 g of water at 80 °C?
(b) If the saturated liquid solution in part (a) is cooled to 20 °C, some of the sugar will
precipitate out as a solid. What will be the composition of the saturated liquid solution (in
wt. % sugar) at 20 °C?
(c) How much of the solid sugar will come out of solution upon cooling to 20 °C?

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