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CHEMISTRY: ATOMS FIRST VOL 1 W/CON...

14th Edition
Burdge
ISBN: 9781259327933

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Chapter
Section
FindFindarrow_forward

CHEMISTRY: ATOMS FIRST VOL 1 W/CON...

14th Edition
Burdge
ISBN: 9781259327933

(a)

Interpretation Introduction

Interpretation

What concentration of the blood in fish must to prevent the blood from freezing has to be calculated and this is reasonable physiological or not to be explained.

Concept introduction

Molality: Molality is defined as number of moles of the solute present in the kilogram of the solvent.

Molality =number of moles of the solutekg of solvent

Freezing point depression (ΔTf) : Freezing point depression is the distinction between freezing point of the pure solvent (Tf°) and freezing point of the solution (Tf) .

ΔTf= Kfm

Where,

ΔTf= Change in freezing pointTf= Freezing point of the solutionTf°= Freezing point of pure solvent

From experimentally observed freezing point depression we can calculate the molality of the solution.  For example, molar mass can be determined from the change in freezing point depression constant.

ΔT = -Kfmm =ΔT-Kf

(b)

Interpretation Introduction

Interpretation:

For given action in the statement mechanism to be suggested.

Concept introduction

Molality: Molality is defined as number of moles of the solute present in the kilogram of the solvent.

Molality =number of moles of the solutekg of solvent

Freezing point depression (ΔTf) : Freezing point depression is the distinction between freezing point of the pure solvent (Tf°) and freezing point of the solution (Tf) .

ΔTf= Kfm

Where,

ΔTf= Change in freezing pointTf= Freezing point of the solutionTf°= Freezing point of pure solvent

From experimentally observed freezing point depression we can calculate the molality of the solution.  For example, molar mass can be determined from the change in freezing point depression constant.

ΔT = -Kfmm =ΔT-Kf

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