RP8-EMF of an electrochemical cell (copper and zinc)

• Equipment: Crocodile clips, voltmeter, filter paper, sodium chloride, copper, zinc, sandpaper, copper sulfate solution, zinc sulfate solution, beakers.
• Set up: Clean the copper and zinc with sandpaper. Add crocodile clips to the metals and connect to a voltmeter. Fill separate beakers with copper sulfate and zinc sulfate solutions. Soak the filter paper in sodium chloride and place as a salt bridge between the two beakers, with one end in each solution.
• Method: Place the metals in their respective sulfate solutions. Record the reading on the voltmeter. It can be repeated and compared with different metals