Question

Discuss molality,molarity,normality and the colligative properties of a solution

Answer 1

Answer:

Molality (m) is defined as a number of moles of solute expressed in kg dissolved in one kg of solvent, Molality has no unit. Molality is a better way of expressing concentration than molarity because there is no term of volume of solvent.

Explanation:

Answer 2

Explanation:

Molarity: Molarity is defined as the number of moles of solute per liter of solution and unit is moles\L.

Molality: Molality is the number of moles of solute per kilogram of the solvent. The unit of molality is moles\Kg

Normality: Normality can be defined as the number of equivalents per liter of solution. The unit of normality is N.

Colligative properties of a solution:

The properties of a solution depend on the concentration of solute molecules or ions and not on the nature of the solute.

• Lowering in vapor pressure
• Boiling point elevation
• Depression in freezing point

• Osmotic pressure

Are the colligative properties of a solution.