What's the Point of Molality?!?

To see all my Chemistry videos, check out http://socratic.org/chemistry Molality is not as common as molarity, and it has a funny name. What is the point? Molal solutions can be easier to make than molar solutions. Also, molality doesn't change as solutions expand and contract, so they stay constant while molar solutions can change. So even though molarity is more common, there are some advantages to molal solutions.