Reaction Time Lab Write Up

331 Words2 Pages
Randall Whitmore Mr. Nelson chemistry 6 October 2011 Reaction Time 1. Purpose- The purpose of this lab is to determine whether a chemical reaction has occurred between the copper and the aluminum. 2. Materials- The materials used during this lab are water, Copper (II) nitrate, sodium hydroxide, hydrochloric acid, Aluminum Wire. 3. Equipment- The equipment used for this lab are 150 mL beaker, Stirring Rod, Bunsen Burner, Test Tube, sink, 4. Procedure- Start off by filling a 150 mL beaker halfway with tap water, and then heat until boiling. Then set aside for later use. Add 3.0 mL of 1.0 M Copper (II) nitrate to the test tube. Add 5.0 mL of sodium hydroxide to the test tube; mix the reaction with a stirring rod. Feel the bottom of the tube and write down any changes you notice. Place test tube into the heated beaker and heat the tube until no changes are happening. Write down everything you notice. Remove test tube from water and allow it to cool for 2 minutes in a small beaker of tap water. Add about 7.0 mL of 1M hydrochloric acid to the tube. Mix chemicals very thoroughly with a stirring rod. Record how long it takes for change to happen. Place a small amount of Aluminum wire into the tube. Leave it until 5 minutes before end of period. When completed, wash hands, clean up lab, and throw out waste. Reaction 1 Reaction 2 Reaction 3 Reaction 4 Reaction 5 Observations Color change to dark blue, solid forms, very slight energy release Steam forms on the test tube, color change from blue to black, a clear layer formed above a black layer Color change from black to light blue, turns from solid to liquid, stirred for one minute Bubbles form at the bottom of the test tube, the blue becomes lighter and nearly colorless A rusty solid appears, the color goes away, the copper deteriorates and rests on the

More about Reaction Time Lab Write Up

Open Document