A solution contains 0.100 mol of NaCl dissolved in 8.60 mol of water has the molality 116.28 mol/kg.
Molality ≈ Mass of solute (mol)/ Mass of solvent(Kg)
What is molality?
Molality is a measure of the number of moles of solute in a solution corresponding to 1 kg or 1000 g of solvent.
Molality ≈ Mass of solute (mol)/ Mass of solvent(Kg)
The SI unit of molality is moles per kilogram (mol/kg).
For example, a solution whose molality is given as 5 mol/kg is stated as 5 molal or 5 m.
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