Osmosis and Osmotic Pressure
Chemistry ⇒ Solutions and Colloids
Osmosis and Osmotic Pressure starts at 11 and continues till grade 12.
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A 0.5 M solution of urea and a 0.25 M solution of NaCl are separated by a semipermeable membrane. Which direction will water move?
A plant cell is placed in distilled water. What type of solution is the distilled water relative to the cell sap?
A solution is separated from pure solvent by a semipermeable membrane. The solvent flows into the solution. What does this indicate about the relative concentrations?
A solution of 0.1 M KCl and 0.1 M glucose are separated by a semipermeable membrane. Which solution will have higher osmotic pressure?
Define isotonic solutions.
Explain the term 'reverse osmosis' and give one application.
A 0.2 M solution of glucose at 27°C (assume R = 0.0821 L atm K-1 mol-1) is separated from pure water by a semipermeable membrane. Calculate the osmotic pressure. (Give answer in atm, rounded to two decimal places.)
A 0.5 M solution of urea and a 0.25 M solution of NaCl are separated by a semipermeable membrane. Which direction will water move?
A solution containing 1 g of a non-volatile solute in 100 mL of water produces an osmotic pressure of 2.46 atm at 27°C. Calculate the molar mass of the solute. (R = 0.0821 L atm K-1 mol-1)
A solution is separated from pure solvent by a semipermeable membrane. The solvent flows into the solution. What does this indicate about the relative concentrations?
Osmotic pressure is directly proportional to which of the following? (1) Solute concentration, (2) Solvent concentration, (3) Temperature, (4) Both 1 and 3
Osmotic pressure is measured in which of the following units? (1) atm, (2) Pa, (3) mmHg, (4) All of these
The osmotic pressure of a solution increases if: (1) Temperature decreases, (2) Solute concentration increases, (3) Solvent amount increases, (4) None of these
The van't Hoff factor (i) for Na2SO4 in water is approximately: (1) 1, (2) 2, (3) 3, (4) 4
Osmotic pressure is a ______ property.
The process of osmosis can be reversed by applying a pressure ______ than the osmotic pressure.
True or False: Osmosis can be used to purify water.
True or False: Osmosis can occur in both living and non-living systems.
True or False: Osmosis is an example of passive transport.
True or False: Osmotic pressure can be used to determine the molar mass of a solute.
