Experiment 13 - Caitlyn Adams Chem Lab 2 Determining the...

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Caitlyn AdamsChem Lab 212/3/19Determining the Heat of Solution by Measuring the Temperature ChangeObjective: The objective of this experiment is to determine the heat of solution by calculating thetemperature change when 0.5 g of sodium chloride and 0.5 g of calcium chloride are separately added to approximately 5.0 g of water.Hypothesis: It is expected that calcium chloride will heat the water about 9.4ºC and the sodium chloride will heat the water by about 10ºC. The heat of solution of calcium chloride should be about -230 J and -250 J for sodium chloride. Since the reaction will be exothermic, it is anticipated that the values will have negative signs.Variables:Independent – temperatureDependent – timeExperimental Procedure:1. Add 5 g of water to a tared and labeled test tube.2. Place test tube on an analytical balance and record the mass.3. Add approximately 0.5 g of calcium chloride to a 50 mL beaker.4. Clamp the test tube that is filled with water to a ring stand.

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