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: a 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 terms :
a. Cryoscopic constant
b. Resistivity
Concept: Colligative Properties and Determination of Molar Mass - Introduction
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
4.0 grams of NaOH ( Molar mass = 40.0 g mol-1 ) is dissolved in 500 cm3 of water. What is the molarity of NaOH solution?
Concept: Colligative Properties and Determination of Molar Mass - Introduction
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
