
(a)
Interpretation: The molality of solution should be calculated.
Concept Introduction:The molality of solution is defined as number of moles of solute in 1 kg of solvent.
It is mathematically represented as follows:
Here, n is number of moles of solute and M is mass of solvent.
From the mass, number of moles can be calculated as follows:
Here, m is mass and M is molar mass.
( b)
Interpretation: The molality of solution should be calculated.
Concept Introduction: The molality of solution is defined as number of moles of solute in 1 kg of solvent.
It is mathematically represented as follows:
Here, n is number of moles of solute and M is mass of solvent.
From the mass, number of moles can be calculated as follows:
Here, m is mass and M is molar mass.

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Chapter 12 Solutions
Basic Chemistry
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