Podcast
Questions and Answers
What is the equilibrium state for a solution?
What is the equilibrium state for a solution?
- When the conversion rate of neutral molecules into ions equals the rate of recombination of ions into neutral molecules. (correct)
- When the solution reaches a high concentration of ions.
- When the solution completely dissociates into ions.
- When the solute concentration keeps increasing over time.
Which concentration unit is commonly expressed in grams of solute per liter of solution?
Which concentration unit is commonly expressed in grams of solute per liter of solution?
- Mass percent (correct)
- Molarity
- Molality
- Parts per million
What characteristic makes vinegar a weak electrolyte?
What characteristic makes vinegar a weak electrolyte?
- High concentration of ions in solution.
- Formation of neutral molecules in solution. (correct)
- Ability to conduct electricity well.
- Strong dissociation into ions.
How is molarity defined?
How is molarity defined?
What is the advantage of using molality as a concentration unit?
What is the advantage of using molality as a concentration unit?
How can the molar concentration be determined from grams per liter?
How can the molar concentration be determined from grams per liter?
What does one mole represent in terms of particles?
What does one mole represent in terms of particles?
What is determined by dividing grams per liter by the molecular weight of a substance?
What is determined by dividing grams per liter by the molecular weight of a substance?
What effect does increasing temperature have on molality?
What effect does increasing temperature have on molality?
What is molality defined as?
What is molality defined as?
Which statement best describes the equilibrium state of a solution?
Which statement best describes the equilibrium state of a solution?
What makes an electrolyte solution electrically conductive?
What makes an electrolyte solution electrically conductive?
How does adding more salt affect the electrical conductivity of a solution?
How does adding more salt affect the electrical conductivity of a solution?
What is the advantage of using molarity as a concentration unit over mass-based units?
What is the advantage of using molarity as a concentration unit over mass-based units?
How are concentration units based on moles or molar units commonly expressed?
How are concentration units based on moles or molar units commonly expressed?
What does one mole represent in terms of atoms or molecules?
What does one mole represent in terms of atoms or molecules?
How does molality differ from molarity in measuring concentration?
How does molality differ from molarity in measuring concentration?
What characteristic distinguishes strong electrolytes like sodium chloride from weak electrolytes like vinegar?
What characteristic distinguishes strong electrolytes like sodium chloride from weak electrolytes like vinegar?
How does the presence of ions affect the electrical conductivity of a solution?
How does the presence of ions affect the electrical conductivity of a solution?
Why is molality considered a useful concentration unit regardless of temperature changes?
Why is molality considered a useful concentration unit regardless of temperature changes?
