# Chapter 13, Problem 13.18QP

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

14th Edition
Burdge
ISBN: 9781259327933

#### Solutions

Chapter
Section
FindFindarrow_forward

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

14th Edition
Burdge
ISBN: 9781259327933

(a)

Interpretation Introduction

Interpretation:

The molality of the given solution has to be determined.

Concept Introduction:

Molality (m):

Molality is the number of moles of solute present in one kilogram of solvent.

Molality (m) =Numberofmolesofsolute1kgofsolvent

Percentage by mass:

Ratio of amount of solute to amount of solution and multiplied with 100.

percentbymass=amountofsoluteamountofsolute+amountofsolvent×100%

(b)

Interpretation Introduction

Interpretation:

The molality of the given solution has to be determined.

Concept introduction:

Molality (m):

Molality is the number of moles of solute present in one kilogram of solvent.

Molality (m) =Numberofmolesofsolute1kgofsolvent

Percentage by mass:

Ratio of amount of solute to amount of solution and multiplied with 100.

percentbymass=amountofsoluteamountofsolute+amountofsolvent×100%

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