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Questions and Answers
Which of the following best defines ionic equilibrium?
Which of the following best defines ionic equilibrium?
- The equilibrium between positively charged ions and negatively charged ions
- The equilibrium between strong electrolytes and weak electrolytes
- The equilibrium between ions and unionized molecules in solution (correct)
- The equilibrium between acids and bases
Which of the following is an example of a strong electrolyte?
Which of the following is an example of a strong electrolyte?
- NaCl (correct)
- H2O
- CH3COOH
- C6H12O6
What is the classification of electrolytes based on the extent of ionization in dilute aqueous solutions?
What is the classification of electrolytes based on the extent of ionization in dilute aqueous solutions?
- Strong and weak electrolytes (correct)
- Positively charged ions and negatively charged ions
- Electrolytes and non-electrolytes
- Acids and bases
Which of the following best defines a non-electrolyte?
Which of the following best defines a non-electrolyte?
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What is the general form of an ionic equilibrium reaction?
What is the general form of an ionic equilibrium reaction?
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Study Notes
Ionic Equilibrium
- Ionic equilibrium refers to the balance between ions in a solution, where the rate of ionization equals the rate of recombination.
- It is characterized by reversible reactions that establish a constant ratio of ions in a saturated solution.
Strong Electrolyte
- A strong electrolyte completely dissociates into ions in an aqueous solution.
- Examples include strong acids (like hydrochloric acid) and strong bases (like sodium hydroxide).
Classification of Electrolytes
- Electrolytes are classified based on ionization:
- Strong electrolytes: Fully ionize, producing maximum ions in solutions.
- Weak electrolytes: Partially ionize, resulting in fewer ions.
- Non-electrolytes: Do not ionize at all in solution.
Non-Electrolyte Definition
- Non-electrolytes are substances that do not dissociate into ions in solution and thus do not conduct electricity.
- Common examples include sugars and organic compounds like ethanol.
General Form of Ionic Equilibrium Reaction
- Ionic equilibrium reactions are typically expressed as:
- Reactants ⇌ Products
- In aqueous solutions, these can represent acid-base dissociations or salt dissolutions where ions are in equilibrium.
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