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<center><b>Colligative Properties Take-Home Lab</b></center> <br> <br> <br> <i>Boiling Point Elevation</i> <br> 1. Find a 1 or 2 quart saucer pan and a small drinking glass (make of glass). Make sure that the glass is able to easily fit inside the saucer pan and not be more than 25%-50% of the volume of the saucer pan. <b>DO NOT USE A GOOD GLASS. SOMETIMES THEY WILL BREAK.</b><br> 2. Fill the glass 1/4 full with water and then dissolve as much table salt (<nowiki>NaCl</nowiki> as you can without leaving a significant amount of table salt on the bottom of the glass.(stirring speeds up the process).<br> 3. Fill the saucer pan 1/2 filled with water.<br> 4. Carefully put the glass into the saucer without the two liquids from mixing. If they mix, you need to repeat Step 2 & 3 over again. (The water level in saucer pan needs to be higher than water in the glass.<br> 5. Now heat both liquids on the stove. <br> 6. Make your observations as you watch the two liquids come to boil. <br> <i>Observations</i> <br> <br> Questions - see handout below<br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <br> <P style="page-break-before: always"> <br> <br> <center><b>Colligative Properties Take-Home Lab</b></center> <center><b>Page 2</b></center> <br> <br> <br> <i>Freezing Point Depression</i> <br> <br> 1. Find a plastic ice cube tray.<br> 2. Prepare a salt solution as in Step 2 of the Boiling Point Elevation section of lab.<br> 3. Add the salt solution to 1/2 of the ice cube tray. <b>LEAVE ONE SET OF CUBES DEPRESSION BETWEEN THE TWO LIQUIDS.</b><br> 4. Add pure water to the other 1/2 of the ice cube tray.<br> 5. Carefully, place the ice cube tray into the freezer. <br> 6. Periodically, observe what is happening to the liquids in the ice cube trays. Record your observations. <br> <br> <br> <i>Observations</i> <br> <br> <br> <br> <br> <i>Questions</i> <br> Click here to find and questions for this lab, [[Questions for Colligative Property Lab]]<br> <br> <br>
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