Solutions Chemistry - Solutions

The compound with maximum value of van't Hoff factor (i) for complete dissociation of solute in aqueous solution is ;

Which of the following solutions of KCl will have the highest value of molar conductivity?

The boiling point of an atomic mixture of two liquids when it :

In which of the following mixtures dipole-dipole attraction is mainly found?

Which formula is not correct for van't Hoff factor?

Define saturated solution.

Write names of solute and solvent present in sodium amalgam solution.

Explain the reason for the solution of chloroform and acetone showing negative deviation from Raoult's law.

Explain the relationship between molality and boiling point elevation.

What is the relationship between the degree of dissociation of solute in the solution and van't Hoff factor?

Define osmosis. Write the name of the method used in desalination of sea-water.

(i) What are anti-freezing agents?
(ii) What is called de-icing agent?

Calculate the molarity of 250 mL solution made by dissolving 5 g NaOH in water.

A special thermometer (Beckmann thermometer) is used to determine molecular weight by freezing point depression method instead of ordinary thermometer. Why?

Explain negative deviation from Raoult's law with an example.

Explain positive deviation from Raoult's law with an example.

A sample of drinking water was found to be severely contaminated with chloroform (CHCl₃) supposed to be a carcinogen. The level of contamination was 15 ppm (by mass) :
(i) express this in percent by mass
(ii) determine the molality of chloroform in the water sample.

Derive formula for degree of dissociation and degree of condensation of the solute in the solvent.

(a) What is reverse osmosis? How is water purified through it? Explain.
(b) Write the applications of osmosis.

How to determine the vapour pressure and total pressure of the components in binary solution of two volatile liquids? Explain their mathematical form and also explain the graph between mole fraction and vapour pressure for an ideal solution.

Prove that boiling point elevation (AT) is proportional to the molality of solute present in the solution. Also find its mathematical form.

Derive a formula to determine the molar mass of a solute by depression of freezing point.

A solution of glucose in water is labelled as 10% w/w, what would be the molality and mole fraction of each component in the solution? If the density of solution is 1.2 g mL^-1, then what shall be the molarity of the solution?

Determine the osmotic pressure of a solution prepared by dissolving 25 mg of K₂SO₄ in 2 litre of water at 25°C, assuming that it is completely dissociated.

Vapour pressure of water at 293 K is 17.535 mm Hg. Calculate the vapour pressure of water at 293 K when 25 g of glucose is dissolved in 450 g of water.

A 5% solution (by mass) of cane sugar in water has freezing point of 271 K. Calculate the freezing point of 5% glucose in water if freezing point of pure water is 273.15 K. 

Heptane and octane form an ideal solution. At 373 K, the vapour pressures of the two liquid components are 105.2 kPa and 46.8 kPa respectively. What will be the vapour pressure of a mixture of 26.0 g of heptane and 35 g of octane?

The mathematical form of Henry's Law is ______________ .

The unit of molarity is _________________ .

On increasing pressure _________________ takes place in boiling point.