CHM120H5 Lecture Notes - Lecture 1: Freezing-Point Depression, Cyclohexane, Molar Mass
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This will be done by measuring temperature as a funcion of ime as the liquid is cooled to its freezing point and ploing cooling curves. 1. Firstly, an ice-water bath was prepared by illing a 400ml beaker with 20g nacl, 300 ml ice and 100ml of water, and this was placed in a 600 ml for some insulaion. Next, the mass of a clean, dry test tube was measured in a. 100 ml beaker and 8. 8156 ml of cyclohexane was added to the test tube. The test tube was then placed in the ice-water bath and clamped in place. Also, a thermometer was secured in place in the test tube. At every 15 seconds interval, the temperature of the cyclohexane was recorded, ill the freezing point was reached and the solidiicaion of the liquid was complete and the temperature coninued to drop.
