Understanding Molality

Molality (m) is a measure of concentration defined as the number of moles of solute per kilogram of solvent.

Calculation

1. Identify the solute and solvent:

- Solute: CaCl₂ (calcium chloride)

- Solvent: Water (H₂O)

2. Given information:

- Moles of solute (CaCl₂): 6 mol

- Mass of solvent (water): 3 kg

3. Formula for molality:

Molality (m) = (Moles of solute) / (Kilograms of solvent)

4. Plug in the values:

m = (6 mol) / (3 kg) = 2 mol/kg

Answer: The molality of the solution is 2 mol/kg.