Colligative Properties and Raoult's Law Quiz
14 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following factors do colligative properties depend on?

  • Relative number of solute molecules and the nature of the solute and the solvent (correct)
  • Relative number of solute molecules is irrespective of the solute and the solvent nature
  • Relative number of solute molecules in the solution and nature of the solvent
  • Relative number of solvent molecules

    • According to Raoult’s law for a dilute solution, what is the relationship between the lowering of saturated vapor pressure and the mole fraction of the solute?

  • The relative lowering of saturated vapor pressure is equal to the mole fraction of the solute (correct)
  • The saturated vapor pressure of the solution is equal to the mole fraction of the solvent
  • The lowering of saturated vapor pressure is equal to the mole fraction of the solute
  • The relative lowering of saturated vapor pressure is proportional to the amount of the solute in the solution

    • What is the vapour pressure of the solvent above the solution equal to?

  • Mole fraction of the solute
  • Molar concentration of the solvent
  • Molar concentration of the solute
  • Mole fraction of the solvent (correct)

    • Which statement is correct for the freezing point of the solution (Tf)?

    <p>Separation of the first crystal of the solvent takes place</p> Signup and view all the answers

    Which statement about the boiling point of a solution is correct?

    <p>Boiling point of a solution is always greater than that of the pure solvent</p> Signup and view all the answers

    What causes a solution to start boiling?

    <p>Its vapor pressure is greater than the external atmospheric pressure</p> Signup and view all the answers

    What does Kb (the molar boiling point elevation constant) characterize?

    <p>solvent</p> Signup and view all the answers

    What is osmosis?

    <p>the solvent from a solution of lower concentration to the higher concentration</p> Signup and view all the answers

    How does the osmotic pressure of a solution increase?

    <p>by increasing the number of molecules of the solute</p> Signup and view all the answers

    What is a solution called if it has a lower osmotic pressure than a reference solution?

    <p>Hypotonic solution</p> Signup and view all the answers

    Which of the following solutions has the higher osmotic pressure?

    <p>0.5M CaCl2</p> Signup and view all the answers

    What is the osmotic pressure of a 0.1 M nonelectrolyte solution at 0°C?

    <p>2.24 atm</p> Signup and view all the answers

    'Vant Hoff’s law' is related to which of the following?

    <p>The osmotic pressure () of a solution is the pressure required to increase osmosis from pure solvent into the solution</p> Signup and view all the answers

    Which expression is used for determination of molar concentration?

    <p>$M_2 = \frac{E \cdot m_{solute}}{\Delta T \cdot m_{solvent}}$</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser