welcome this tutorial is designed to help you understand the concept of molality.
molality is another way to express the concentration of a solution but molality is expressed in
moles of solute per kilogram of solvent.
it is less commonly used than molarity but it does have a few important uses so we're
going to learn it.
a one molal solution is comprised of one mole of solute dissolved in one kilogram of solvent.
40 grams of sodium hydroxide dissolved in 1 kg water will
give
you
a one molal
sodium hydroxide solution.