Electrolytes and Ionic Solutions

The video explores whether lithium nitrate (L3) is an electrolyte or non-electrolyte. It defines an electrolyte as a substance that dissolves in water, producing ions that conduct electricity. Lithium nitrate is identified as a strong electrolyte because it dissolves in water, dissociating into lithium and nitrate ions, which conduct electricity. The video concludes by affirming lithium nitrate's properties as a strong electrolyte.

What is the primary characteristic of an electrolyte?

• It evaporates quickly.

• It remains solid in water.

• It produces ions in solution.

• It dissolves in non-polar solvents.

Why are compounds with the nitrate ion considered very soluble?

• They dissolve and dissociate into ions easily.

• They do not dissolve in water.

• They form gases when dissolved.

• They change color in water.

What ions are formed when lithium nitrate dissolves in water?

• Lithium ion and chloride ion

• Lithium ion and nitrate ion

• Sodium ion and nitrate ion

• Potassium ion and sulfate ion

What is the charge of the lithium ion formed in solution?

• 2+

• 1-

• 1+

• 0

What makes lithium nitrate a strong electrolyte?

• It completely dissociates into ions.

• It partially dissociates in water.

• It forms a precipitate in water.

• It does not conduct electricity.

What is the role of ions in the conductivity of a solution?

• They make the solution evaporate faster.

• They allow the solution to conduct electricity.

• They prevent the flow of electricity.

• They enhance the color of the solution.