Electrolysis of lead(II) bromide

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Electrolysis of lead(II) bromide

Electrolysis of lead(II) bromide Give the formula of lead(II) bromide. What type of bonding will lead(II) bromide have? Draw a dot and cross diagram (showing outer electrons only) for lead(II) bromide. Suggest the structure and therefore the properties that you expect lead(II) bromide to have. Write a word and a balanced equation (including state symbols) for the formation of lead(II) bromide from lead and bromine.

During the demonstration Describe your observations as lead(II) bromide is heated. Describe your observations as an electric current is passed through the molten lead(II) bromide. After the demonstration Explain your observations as lead(II) bromide is heated. Explain your observations as an electric current is passed through the molten lead(II) bromide.

After the demonstration Explain your observations as lead(II) bromide is heated. You should use the following key words: energy separate oppositely strong attraction forces many electrostatic ions charged

Draw an annotated cross-section diagram to show what has happened during the electrolysis.

electrolysis video

Annotating the diagram Use some of the following (once or more than once) to annotate the diagram: Br- Pb2+ e- anode (+ve) cathode (-ve) heat molten lead(II) bromide bromine lead Br2 Pb oxidised reduced Tripod pipe clay triangle crucible bulb

Oxidation and reduction in electrolysis Loss of Gain of Electrons is the lion says Electrons is Oxidation Reduction At the cathode (negative electrode) Pb2+ + 2e- Pb Pb2+ reduced At the anode (positive electrode) 2Br - Br2 + 2e- Br - oxidised