What is the difference between molarity & molality? And also explain which one extensive or intensive properties.

Question

Accepted Answer

Molarity is the concentration of a solution in terms of moles of solute per liter of solution, while molality is the concentration of a solution in terms of moles of solute per kilogram of solvent.

Molarity is an extensive property, while molality is an intensive property.
Molarity changes with temperature and pressure, while molality remains constant.
Molality is preferred in calculations involving colligative properties.
Example: A solution containing 1 mole of solute in 1 liter of solution has a molarity of 1 M and a molality of 1 mol/kg.
Example: A solution containing 1 mole of solute in 2 liters of solution has a molarity of 0.5 M and a molality of 0.5 mol/kg.

Accepted Answer

Molality -The ratio of the moles of a solute to the total liters of a solution.

Molarity - The ratio of the moles of a solute in kilograms of a solution.

Accepted Answer

An extensive property is a property that depends an amount of matter in a sample.mass and volume are examples of extensive properties and color temperature and solubility are examples of intensive properties.

Accepted Answer

Molarity

It represents mole of solute present in 1L of solution.

Molality

It represent mole of solute percent per 1Kg of solution.

What is the difference between molarity & molality? And also explain which one extensive or intensive properties.

Top Pragati Classes Chemistry Faculty interview questions & answers

Popular interview questions of Chemistry Faculty

What is the difference between molarity &amp; molality? And also explain which one extensive or intensive properties.

Top Pragati Classes Chemistry Faculty interview questions & answers

Popular interview questions of Chemistry Faculty

What is the difference between molarity & molality? And also explain which one extensive or intensive properties.