Question

On the basis of 12th class define molality???

Answer 1

HØĽÄ!✌

Molality is considered better for expressing the concentration as compared to molarity ,because the molarity changes with temperature because of expansionor contraction of the liquid with temperature .How ever , molality does not change with temperature because mass of the solvent does not change in temperature

Answer 2

Molality define as the number of mole of substance in per litre of solution.

molality does not depend on temperature.

Molality = molarity *acidity /baseicity .