Colligative Properties and Raoult's Law Quiz

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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)?

Separation of the first crystal of the solvent takes place Signup and view all the answers

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

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

What causes a solution to start boiling?

Its vapor pressure is greater than the external atmospheric pressure Signup and view all the answers

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

solvent Signup and view all the answers

What is osmosis?

the solvent from a solution of lower concentration to the higher concentration Signup and view all the answers

How does the osmotic pressure of a solution increase?

by increasing the number of molecules of the solute Signup and view all the answers

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

Hypotonic solution Signup and view all the answers

Which of the following solutions has the higher osmotic pressure?

0.5M CaCl2 Signup and view all the answers

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

2.24 atm Signup and view all the answers

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

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

Which expression is used for determination of molar concentration?

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

Colligative Properties and Raoult's Law Quiz

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