theMaharajah Posted April 4, 2006 Share Posted April 4, 2006 What's the difference between these two? Other than the equations, when do you know when to use Molality and when to use Molarity? Link to comment Share on other sites More sharing options...
Darkblade48 Posted April 4, 2006 Share Posted April 4, 2006 Molarity, as you know, is moles / litre Molality is mass of solute / mass of solvent You use molality in calculations such as osmotic pressure, boiling point elevation, and freezing point depression. Link to comment Share on other sites More sharing options...
Shwarzchild Posted April 5, 2006 Share Posted April 5, 2006 Molarity is how concentrated a substance is. It's moles of solute over Liters of solution. A solution is a homogeneous mixture of two or more substances in a single phase, and solute is the dissolving medium in a solution. Link to comment Share on other sites More sharing options...
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