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2013-07-07

Electrolysis of Molten Lead(II) Bromide

Set-up of apparatus to study electrolysis of molten lead(II) bromide

Diagram shows reactions occurs during electrolysis of molten lead(II) bromide at both electrodes
  • Molten lead(II) bromide consists of lead(II) ions and bromide ions.
  • During electrolysis of molten lead(II) bromide, bromide ions move to anode and lead(II) ions move to cathode.
  • At anode, bromide ions are discharged by releasing electrons to form bromine. Half equation for the reaction is 2Br-  --> Br2 + 2e-
  • At cathode, lead(II) ions are discharged by accepting electrons to form lead.  Half equation for the reaction is 
           Pb2+ + 2e- --> Pb

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