Question

Difference between Molarity and Molality

Answer 1

Molality is moles of the solute per kilogram of the solvent.......... 
Molarity is moles of the solute per liter of the solution............
Molalities are more convenient in experiments involving temperature changes...........

Answer 2

the concentration of a substance in solution, expressed as the number moles of solute per litre of solution is molarity and the concentration of a substance in solution, expressed as the number of moles of solute per kilogram of solvent is molality