Chemistry: Electrolytes and Non-Electrolytes
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Questions and Answers

What is an electrolyte?

  • A substance that does not dissolve in water.
  • A substance that exists only as molecules in solution.
  • A substance that gives rise to ions when dissolved in water. (correct)
  • A substance that only dissolves in organic solvents.
  • Which type of electrolyte dissociates almost completely in solution?

  • Non-electrolyte
  • Weak electrolyte
  • Dissociative electrolyte
  • Strong electrolyte (correct)
  • What characterizes a non-electrolyte?

  • It partially dissociates into ions.
  • It exists as ions when dissolved in water.
  • It ionizes completely in solution.
  • It does not ionize and remains as molecules. (correct)
  • What does the degree of dissociation (α) represent?

    <p>The fraction of moles that dissociate in a solution.</p> Signup and view all the answers

    Which of the following is not an example of a strong electrolyte?

    <p>Acetic acid</p> Signup and view all the answers

    Study Notes

    Electrolytes

    • Substances that form ions when dissolved in water.

    Non-Electrolytes

    • Do not ionize and exist as molecules in water.

    Types of Electrolytes

    • Strong electrolytes dissociate completely or almost completely in water.
      • Examples include salts, strong acids, and strong bases.
    • Weak electrolytes dissociate to a smaller extent in water.

    Degree of Dissociation

    • Represents the fraction of molecules that dissociate into ions.
    • Formula: α = (Number of moles dissociated) / (Total number of moles)

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    Description

    Explore the fascinating world of electrolytes through this quiz. Learn the differences between strong and weak electrolytes, their characteristics, and how degrees of dissociation are calculated. Challenge your knowledge about substances that ionize in water and test your understanding of chemical solutions.

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