Calculate the molality of each solution.
(a) 0.25 mol solute; 0.250 kg solvent
(b) 0.882 mol solute; 0.225 kg solvent
(c) 0.012 mol solute; 23.1 g solvent
Molality is a property of a solution and is defined as the number of moles of solute per kilogram of solvent.
The SI unit for molality is mol/kg.
A solution with a molality of 3 mol/kg is often described as "3 molal" or "3 m."
(a) 0.25 mol solute; 0.250 kg solvent.
We know that
Molality = no.of moles of solute /Kg of solvent .
=0.25 m/0.250 Kg