Colligative Properties: Relative Lowering of Vapour Pressure
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Questions and Answers

Which of the following is NOT a colligative property of solutions?

  • Refractive index (correct)
  • Freezing point depression
  • Boiling point elevation
  • Osmotic pressure

Which colligative property is directly proportional to the molality of the solution?

  • Vapor pressure lowering
  • Osmotic pressure (correct)
  • Freezing point depression
  • Boiling point elevation

For a 0.1 m solution of a non-electrolyte, the expected freezing point depression is closest to:

  • 1.86 C
  • 18.6 C
  • 0.186 C (correct)
  • 186 C

Which of the following solutions would exhibit the greatest boiling point elevation?

<p>0.1 m $BaCl_2$ (B)</p> Signup and view all the answers

Which of the following statements about osmotic pressure is INCORRECT?

<p>It depends on the identity of the solute particles (C)</p> Signup and view all the answers

A 0.1 m aqueous solution of a compound has an osmotic pressure of 2.46 atm at 25C. What is the expected van 't Hoff factor for this compound?

<p>2 (B)</p> Signup and view all the answers

Which of the following solutions would exhibit abnormal colligative properties?

<p>0.1 m $NaOH$ (A)</p> Signup and view all the answers

For a 0.01 m solution of a non-volatile solute, the expected vapor pressure lowering at 25C is closest to:

<p>0.062 torr (B)</p> Signup and view all the answers

Which of the following is NOT a requirement for a solution to be considered ideal?

<p>The solution exhibits abnormal colligative properties (C)</p> Signup and view all the answers

For a 0.1 m solution of a non-electrolyte, the expected osmotic pressure at 37C is closest to:

<p>2.52 atm (A)</p> Signup and view all the answers

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