Electrolyte and non electrolyte problems and solutions

  1. What is an electrolyte solution? Solution: An electrolyte solution is a solution that contains ions (anions and cations) and therefore can conduct electricity.

  2. What is a non-electrolyte solution? Solution: A non-electrolyte solution is a solution that doesn’t contain ions and therefore cannot conduct electricity.
  3. Are all ionic compounds electrolytes? Solution: Generally, all ionic compounds are electrolytes because they dissociate into ions when dissolved in water, allowing the solution to conduct electricity.
  4. Is sugar (C₁₂H₂₂O₁₁) an electrolyte or a non-electrolyte? Solution: Sugar is a non-electrolyte because it dissolves in water as molecules, not ions.
  5. Why is tap water an electrolyte while distilled water is not? Solution: Tap water is an electrolyte because it contains ions from minerals and other dissolved solids. Distilled water is not an electrolyte because these impurities have been removed, leaving no ions to conduct electricity.
  6. Why is sodium chloride (NaCl) an electrolyte? Solution: Sodium chloride is an electrolyte because it dissociates into sodium and chloride ions when dissolved in water. These ions allow the solution to conduct electricity.
  7. What is the difference between a strong electrolyte and a weak electrolyte? Solution: A strong electrolyte is a substance that completely ionizes or dissociates in a solution, resulting in a high conductivity. A weak electrolyte only partially ionizes or dissociates, resulting in low conductivity.
  8. Can gases act as electrolytes? Solution: Gases cannot act as electrolytes because electrolytes need to be in a liquid or dissolved in a liquid in order to allow for the flow of electricity.
  9. Is acetic acid (CH₃COOH) a strong or weak electrolyte? Solution: Acetic acid is a weak electrolyte because it only partially ionizes in solution.
  10. Why is ethanol (C₂H₅OH) a non-electrolyte? Solution: Ethanol is a non-electrolyte because it does not ionize when dissolved in water.
  11. Is hydrochloric acid (HCl) a strong or weak electrolyte? Solution: Hydrochloric acid is a strong electrolyte because it fully ionizes in solution.
  12. How does temperature affect the conductivity of an electrolyte solution? Solution: As temperature increases, the conductivity of an electrolyte solution generally increases. This is because the ions gain more kinetic energy and can move faster, leading to increased conductivity.
  13. Why are most non-electrolyte substances molecular compounds? Solution: Most non-electrolyte substances are molecular compounds because they are made of nonmetals. When these compounds dissolve in water, they form individual molecules rather than ions.
  14. Is distilled water an electrolyte or a non-electrolyte? Solution: Distilled water is a non-electrolyte. It does not contain any dissolved salts or minerals, so it doesn’t produce ions when it dissolves, and therefore, cannot conduct electricity.
  15. Are all salts electrolytes? Solution: Yes, all salts are electrolytes. When a salt dissolves in water, it dissociates into its constituent ions, which are able to conduct electricity.
  16. What is the difference between an electrolyte and a nonelectrolyte in terms of ion production? Solution: An electrolyte dissociates into ions when dissolved in a solution, whereas a nonelectrolyte dissolves into individual molecules without producing ions.
  17. Can a non-electrolyte solution conduct electricity? Solution: No, a non-electrolyte solution cannot conduct electricity because it does not contain ions.
  18. Is sulfuric acid (H₂SO₄) a strong or weak electrolyte? Solution: Sulfuric acid is a strong electrolyte because it fully ionizes in solution.
  19. Why does a solution of calcium chloride (CaCl₂) conduct electricity? Solution: A solution of calcium chloride conducts electricity because it dissociates into calcium and chloride ions when dissolved in water, and these ions allow the solution to conduct electricity.
  20. Why does pure water have low conductivity? Solution: Pure water has low conductivity because it has very few ions. While water does auto-ionize to a small extent to form H⁺ and OH⁻ ions, the concentration of these ions is very low.

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