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Unformatted text preview: Name:__________________ Class:______________ Date:___________________ Spot #:_____________ Chemistry Lab #_________ Title : We All Scream for Ice Cream! Purpose : To observe the freezing point depression of salt water and its effect on the milk, sugar and vanilla mixture. (We All Scream for Ice Cream!) 1 Procedure : 1. Place one cup of milk, two tablespoons of sugar, and one half a teaspoon of vanilla extract into a small zip-lock storage bag. Make sure that you seal it completely after eliminating as much air as possible from the bag. Manipulate the bag with your fingers until all of the sugar dissolves. 2. Place some crushed ice on the bottom of a plastic cylindrical refrigerator jar. Pour a generous amount of salt over the ice. Place the closed zip-lock bag containing the milk-sugar-vanilla mixture on top of the ice in the plastic container. Cover the bag with more crushed ice and pour more salt over it. Make sure that the container is filled with ice to the top. Screw on the cap making sure that the sealed jar is water-tight . 3. Sit at a table facing your lab partner. Roll the jar on top of the table back and forth between the two of you until the mixture turns solid....
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This note was uploaded on 11/09/2011 for the course CHEM 100 taught by Professor Sdfsdf during the Winter '08 term at BYU.
- Winter '08