Preparing for your ACS examination in general chemistry
Preparing for your ACS examination in general chemistry
98th Edition
ISBN: 9780970804204
Author: Lucy T Eubanks
Publisher: ACS DIVCHED EXAMINATIONS INST.
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Chapter SM, Problem 22PQ
Interpretation Introduction

Interpretation:

The mass of water that is needed to dissolve 292.5 g of NaCl to produce 0.25 m aqueous solution has to be determined.

Concept Introduction:

Molality is a concentration term that is defined as moles or amount of solute divided by mass of solvent in kilograms. It is represented by m and it has units of mol/kg.

The formula to calculate molality of solution is as follows:

  Molality of solution (m)=Amount(mol)of soluteMass(kg)of solvent        (1)

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