Required Practical 3:Electrolysis
Cards (18)
- What should you be able to describe by the end of the video?
- Why is it recommended to watch two videos before starting the protocol?
- What are the two aqueous solutions used in the electrolysis experiment?
- How much copper(II) chloride solution is poured into the beaker?
- What is the purpose of the plastic petri dish in the experiment?
- What material are the electrodes made of?
- Why are the carbon graphite electrodes considered inert?
- What happens if the two electrodes touch each other?
- What voltage is selected on the power supply during the experiment?
- What is observed at the cathode during the electrolysis of copper(II) chloride?
- Why is copper discharged at the cathode?
- What gas is produced at the anode during the electrolysis of copper(II) chloride?
- What indicates that chlorine gas is produced at the anode?
- What happens when sodium chloride solution is electrolyzed?
- What is observed at the anode during the electrolysis of sodium chloride?
- Why does the gas at the cathode during sodium chloride electrolysis produce a squeaky pop?
- What is the characteristic sound produced by hydrogen gas?
- What are the key observations during the electrolysis of copper(II) chloride and sodium chloride solutions?