Freezing Point

Freezing Point - Freezing Point January 30, 2008 Section...

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Freezing Point January 30, 2008 Section 2731/2712 Chemistry 002 Ruili Nick Hookham Purpose -
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The purpose of this lab was to determine the molar mass of a solute in a solution by measuring the change in freezing point when that solute is added to a solvent. This is possible because of the colligative properties of the chemicals used. Procedure - First measure 10g to 25g of the solvent assigned, then add the solvent to an empty test tube. Next place the tube into a 1000 mL beaker with heated water and keep the solvent there until it is melted. Then, hang a thermometer so that it is suspended in the melted solvent and agitate the solvent with a wire while taking the temp every 30 seconds. Keep measuring the temperature until the solvent temp moves away from the plateau. Then remelt the solvent and remove the wire and the thermometer. Then take a filled out pink slip to the stockroom and receive a solute and repeat the above steps with the solvent added to the solute and when finished, pour the solution into the waste beaker. Data
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Freezing Point - Freezing Point January 30, 2008 Section...

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