Please select a subject first
Advertisements
Advertisements
Define Semipermeable membrane
Concept: Colligative Properties and Determination of Molar Mass >> Osmosis and Osmotic Pressure
22.22 gram of urea was dissolved in 300 grams of water. Calculate the number of moles of urea and molality of the urea solution.
(Given: Molar mass of urea = 60 gram mol−1)
Concept: Expressing Concentration of Solutions
Derive van’t Hoff general solution equation.
Concept: Types of Solutions
Derive van’t Hoff general solution equation.
Concept: Types of Solutions
Define the following term:
Hypotonic solution
Concept: Colligative Properties and Determination of Molar Mass >> Osmosis and Osmotic Pressure
Define the following term:
Hypotonic solution
Concept: Colligative Properties and Determination of Molar Mass >> Osmosis and Osmotic Pressure
What is the freezing point of a liquid? The freezing point of pure benzene is 278.4 K. Calculate the freezing point of the solution when 2.0 g of a solute having molecular weight 100 g mol-1
is added to 100 g of benzene.
( Kf of benzene = 5.12 K kg mol-1 .)
Concept: Colligative Properties and Determination of Molar Mass >> Depression of Freezing Point
Choose the most correct option.
In calculating osmotic pressure the concentration of solute is expressed in _______.
Concept: Colligative Properties and Determination of Molar Mass >> Osmosis and Osmotic Pressure
Choose the most correct option.
In calculating osmotic pressure the concentration of solute is expressed in _______.
Concept: Colligative Properties and Determination of Molar Mass >> Osmosis and Osmotic Pressure
Choose the most correct option.
A living cell contains a solution which is isotonic with 0.3 M sugar solution. What osmotic pressure develops when the cell is placed in 0.1 M KCl solution at body temperature?
Concept: Colligative Properties and Determination of Molar Mass >> Osmosis and Osmotic Pressure
Choose the most correct option.
A living cell contains a solution which is isotonic with 0.3 M sugar solution. What osmotic pressure develops when the cell is placed in 0.1 M KCl solution at body temperature?
Concept: Colligative Properties and Determination of Molar Mass >> Osmosis and Osmotic Pressure
Choose the most correct option.
Pressure cooker reduces cooking time for food because _______.
Concept: Vapour Pressure Lowering
Answer the following in one or two sentences.
What is osmotic pressure?
Concept: Colligative Properties and Determination of Molar Mass >> Osmosis and Osmotic Pressure
Answer the following in one or two sentences.
What is osmotic pressure?
Concept: Colligative Properties and Determination of Molar Mass >> Osmosis and Osmotic Pressure
Answer the following.
What are isotonic and hypertonic solutions?
Concept: Colligative Properties and Determination of Molar Mass >> Osmosis and Osmotic Pressure
Answer the following.
What are isotonic and hypertonic solutions?
Concept: Colligative Properties and Determination of Molar Mass >> Osmosis and Osmotic Pressure
Derive the relationship between the degree of dissociation of an electrolyte and van’t Hoff factor.
Concept: Colligative Properties of Electrolytes
The vapour pressure of water at 20°C is 17 mm Hg. What is the vapour pressure of solution containing 2.8 g urea in 50 g of water?
Concept: Vapour Pressure of Solutions of Liquids in Liquids
A solution of citric acid C6H8O7 in 50 g of acetic acid has a boiling point elevation of 1.76 K. If Kb for acetic acid is 3.07 K kg mol-1, what is the molality of solution?
Concept: Relative Molecular Mass >> Boiling Point Elevation
A mixture of benzene and toluene contains 30% by mass of toluene. At 30°C, vapour pressure of pure toluene is 36.7 mm Hg and that of pure benzene is 118.2 mm Hg. Assuming that the two liquids form ideal solutions, calculate the total pressure and partial pressure of each constituent above the solution at 30°C.
Concept: Vapour Pressure of Solutions of Liquids in Liquids
