CHEM 104 Experiment 6: Electrochemistry - Portage Learning Purpose: The purpose of this lab was to study how redox reactions occur & to determine how conductivity can occur between metals & how we can predict if it will react or not. Procedure: Consider: Cu2+ + 2e- -> Cu(s) = reduction Fe(s) -&...
1 Chemistry Notebook Name: Date: 5/4/23 Experiment #: 6 Title: Electrochemistry Purpose: The purpose of this lab was to study how redox reactions occur & to determine how conductivity can occur between metals & how we can predict if it will react or not. Procedure: Consider: Cu2+ + 2e - -> Cu(s) = reduction Fe(s) -> Fe2+ + 2e- = oxidation Part 1: 1. Utilizing a lightbulb device, we tested the conductive of the following items: a. Metal cylinder good conductor (bright light) b. Water poor conductor (no light) c. Sugar water poor conductor (no light) d. KCl water good condu ctor (bright light) e. Coke slight conduction (light) Part 2: 1. Place a shiny nail in a test tube with copper sulfate (copper ions present) 2. Allow it to set for a about 30 seconds 3. Lastly, we pulled the nail out of the solution & observed a thin layer of copper on the nail Part 3: 1. A test tube with HCl was placed in a beaker. 2. A magnesium ribbon was placed in the test tube 3. Observed the reaction a. Steaming (thermochemical reaction – heat producing), bubbling (this is H2 gas) Part 4: 1. A sheet of copper metal was placed into a beaker with an Fe2+ solution 2. However, we did not observe the same reaction as the previous 3. There was no reaction Part 5: 1. We constructed a voltaic cell using copper (cathode) 1.0M solution & zinc (anode) 1.0 M solution a. It is important that both solutions are 1.0 M because it ensure standard conditions 2. A copper wire & mossy zinc wire were attached to the alligator clips on the wire attached to the meter
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