Freezing Point Depression Measurements

We often use colligative properties to our advantage such as putting salt on the road in the winter for cold and snowy climates to help melt the ice that forms in the winter.  The addition of salt lowers the freezing point of water helping minimize the formation of ice.  This experiment will guide students through finding the freezing point depression constant of an organic molecule and then using the freezing point depression to determine the molar mass of unknown solutes.

Click "Resources" below for a PDF of the experiment. 

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