E9-EnthalpyFusionIce

E9-EnthalpyFusionIce - Kristina Nguyen w/Maturin April 7th,...

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Kristina Nguyen w/Maturin April 7 th , 2008 Experiment 9 – Enthalpy of Fusion of Ice Objectives: - To experimentally determine the heat when the fusion of ice occurs; finding the enthalpy. Procedure: 1. After we set up the computer and Hess’s Law program, and adjusted scales on the graph, we gathered the materials. 2. We first weighed the Styrofoam cup empty, with the lid on, and recorded its mass. 3. We got about 300mL of water in a 400mL beaker and began to heat it up, above 45°C. 4. We then placed about 100mL of hot water in a graduated cylinder then into the calorimeter, weighed it, and recorded the mass. 5. Next, we placed the probe in the water and began to collect data as we added the ice. The ice was first “dried” using a paper towel, and then added it. 6. We continued to add ice and gently swirl the cup until the temperature reached below 0.4°C, then we stop the data collecting 7. We weighed the empty Styrofoam cup and when the temperature was appropriate we poured the water in the cup and took its mass. 8.
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E9-EnthalpyFusionIce - Kristina Nguyen w/Maturin April 7th,...

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