3
Example 1 3
Solution
Solution
Solution
Solution
Solution
(vii) Molality: Molality (m) is defined as the number of moles of the solute
per kilogram (kg) of the solvent and is expressed as:
Molality (m) =
Moles of solute
Mass of solvent in kg
(1 9)
For example, 1 00 mol kg
–1 (or 1