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MECANICA DE FLUIDOS PROYECTO FINAL DE LA MATERIA MECANICA DE FLUIDOS DONDE SE EXPONEN LOS PRINCIPALES TEMAS Y SU CAMPO DE APICACION EN LA VIDA DIARIA.
Leftover Aluminum Wire CAUTION: CuCl 2 solution is toxic toxic by ingestion ingestion and is a body tissue irritant. Avoid contact contact with body tissues. Wear safety goggles, goggles, apron, and gloves gloves for this activity. Procedure. 1. Set up a hot water bath in a 400 mL beaker. Make sure to bring the water to a boil. 2. Measure approximately approximately 0.50 g of CuCl2. Record the mass mass in the data table. table. 3. Place the crystals in a test tube. Add 10 mL of distilled water and stir to dissolve dissolve the crystals. 4. Cut a 16-18 cm piece of aluminum wire. Use a small piece of steel wool to remove corrosion. Measure the mass mass of the wire and record record in the data table. table. 5. Use forceps to lower the aluminum wire into the test tube containing the CuCl2. The wire will extend beyond the top of the test tube. Place the test tube into the boiling water bath for approximately approximately 5-10 minutes. The reaction is complete when the solution solution turns colorless. 6. Use forceps to remove the aluminum wire wire from the test tube. Use caution so as not to disturb the copper on the wire. 7. Measure the mass of an evaporating dish and record the mass in the data table. 8. Use a spatula to scrape as much copper as possible into the evaporating dish. 9. Rinse the aluminum wire with water to remove any impurities and dry the wire with a and record the actual actual “leftover” mass of aluminum aluminum paper towel. Once dry, measure and
wire. 10. Allow the copper to dry overnight. Once dry, measure the mass mass of the copper and the evaporating dish. Record the mass mass in the data table. table. Data. Mass of CuCl2•2H2O Mass of aluminum wire Mass of evaporating dish Actual mass of “leftover” aluminum wire Mass of evaporating dish and dry copper
g g g g g
Calculations. 1. Write and balance the equation for the reaction between aluminum and CuCl2.