Investigating changes in colligative properties involves the measurement of a solution's concentration in molality instead of molarity because (2 points)
the mass of the solvent does not change, but its volume does change, as temperature changes.
the volume of a solution can be measured more accurately than the mass of a solution.
the volume of a solution does not change, but its mass does change, as temperature changes.
the mass of a solvent can be measured more accurately than the volume of a solvent.
As finding concentration is tricky !! if temp change volume will change and thus Molarity will change !! So we take molality as it does not depend on temp !!
