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Lead(II) bromide is used because it melts at an unusually low temperature for an ionic compound (373 °C). Lead can be fairly safely handled afterwards (taking care to ensure that hands are washed after any contact with the metal). Bromine is a coloured acidic gas with a characteristic smell.

Electrolysis is not possible with solid lead(II) bromide. This is because the ions are held in a three-dimensional lattice, unable to move freely to the electrodes. Melting enables the ions to become mobile and to travel to the respective electrodes.

At the cathode (-) molten lead is formed:

Pb2+(l) + 2e- → Pb(l)

At the anode, gaseous bromine is evolved:

2Br-(l) → Br2(g) + 2e-

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12y ago
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10y ago

because the ions aren't free to move and carry the charge whereas when molten or in solution they are able to flow freely.

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10y ago

Because the ions are not free to move in the solid, so they cannot move to the electrodes to be discharged.

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6y ago

Solid lead bromide is not an electrolyte.

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11y ago

causeit is molten

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Q: Why does solid lead bromide not allow the passage of electricity?
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Related questions

Does calcium bromide conduct electricity?

Calcium bromide is an ionic solid, in the solid state it does not conduct electricity. Solutions do conduct, as does the melt.


Does solid lead bromide conduct electricity?

No.


Is bromide a non metal and a good conductor of electricity?

Bromine, as the element is called on its own is a nonmetal, and is a poor conductor of electricity. Bromide salts conduct electricity if dissolved in water or molten, but not in their normal solid states.


Does sodium bromide conduct electricity?

Sodium bromide is an ionic substance. It conducts electricity when melted or when dissolved in water. This is due to the sodium, Na+ ions and the Br- ions present. It does not conduct electricity in the solid state as the ions can not move.


Does sodium bromide conduct electricity when sold?

Does not, in solid form there are no free ions so can not move towards cathode and anode plates so can not conduct electricity.


What is the crystalline solid formed by potassium bromide?

Potassium bromide forms an ionic solid


Does solid potassium bromide conduct electricity?

No because it's a crystalline ionic solid. However, dissolve some KBr in water and it will conduct electricity nicely, because in solution it's an electrolyte, with lots of little K+ and Br- ions floating around.


Is calcium bromide a gas liquid or solid?

Calcium bromide is a solid at standard temperature and pressure.


Is sodium bromide a solid?

yes. it is a solid


Is calcium bromide a solid?

no


What is colour for sodium bromide?

Sodium bromide is a white, crystalline solid.


What does potassium bromide look like?

At room temperature bromine is a reddish-brown liquid. s