
(a)
Interpretation: The boiling point and freezing point of the given solution of glucose in ethanol should be determined.
Concept Introduction:
The elevation in boiling point of the ethanol is calculated by using the formula,
Where,
is the elevation in boiling point.
is the van’t Hoff factor which describes the number of ions of solute particles in the solution.
is the molality of the solution.
is the molal boiling point elevation constant
refer table 13.3)
Where,
is the depression in freezing point.
is the van’t Hoff factor which describes the number of ions of solute particles in the solution.
is the molality of the solution.
is the molal freezing point depression constant
refer table13.3)
(b)
Interpretation: The boiling point and freezing point of the given solution of decane in chloroform should be calculated.
Concept Introduction:
The elevation in boiling point of the ethanol is calculated by using the formula,
Where,
is the elevation in boiling point.
is the van’t Hoff factor which describes the number of ions of solute particles in the solution.
is the molality of the solution.
is the molal boiling point elevation constant
refer table 13.3)
Where,
is the depression in freezing point.
is the van’t Hoff factor which describes the number of ions of solute particles in the solution.
is the molality of the solution.
is the molal freezing point depression constant
refer table13.3)
(c)
Interpretation: The boiling point and freezing point of the given solution of in water should be calculated.
Concept Introduction:
The elevation in boiling point of the ethanol is calculated by using the formula,
Where,
is the elevation in boiling point.
is the van’t Hoff factor which describes the number of ions of solute particles in the solution.
is the molality of the solution.
is the molal boiling point elevation constant
refer table 13.3)
Where,
is the depression in freezing point.
is the van’t Hoff factor which describes the number of ions of solute particles in the solution.
is the molality of the solution.
is the molal freezing point depression constant
refer table13.3)
(d)
Interpretation: The boiling point and freezing point of the given solution of ethylene glycol and in water should be calculated.
Concept Introduction:
The elevation in boiling point of the ethanol is calculated by using the formula,
Where,
is the elevation in boiling point.
is the van’t Hoff factor which describes the number of ions of solute particles in the solution.
is the molality of the solution.
is the molal boiling point elevation constant
refer table 13.3)
Where,
is the depression in freezing point.
is the van’t Hoff factor which describes the number of ions of solute particles in the solution.
is the molality of the solution.
is the molal freezing point depression constant
refer table13.3)

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Chapter 21 Solutions
Chemistry the Central Science 13th Edition Custom for Lamar University
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