In a face centred lattice with all the positions occupied by A atoms the body centred octahedral hole in it is occupied by an atom B of an appropriate size for such a crystal, calculate the void space per unit volume of unit cell. Also predict the formula of the compound?

Anonymous User Chemistry Solid State 14 Mar, 2020 1 Answer 109 views

A tube of uniform cross sectional area 1 cm2 is closed at one end with semi permiable membrane. A solution having 5 gm glucose per 100 ml is placed inside the tube and dipped in pure water at 27°C. When the equilibrium is established, what will be the osmotic pressure, height developed in vertical column. Also calculate molality and molarity of the solution. Density of glucose solution is 1 gm/ml

Anonymous User Chemistry Solutions 13 Mar, 2020 1 Answer 163 views




The vapour pressures of ethanol and methanol are 42.0 mm and 88.5 mm Hg respectively. An ideal solution is formed at the same temperature by mixing 46.0 g of ethanol with 16.0 g of methanol. The mole fraction of methanol in the vapour is:

Anonymous User Chemistry Solutions 13 Mar, 2020 1 Answer 55 views

The vapour pressure of benzene at 80°C is lowered by 10 mm by dissolving 2g of a non-volatile substance in 78g of benzene. The vapour pressure of pure benzene at 80°C is 750 mm. The molecular weight of the substance will be:

Anonymous User Chemistry Solutions 13 Mar, 2020 1 Answer 585 views

Solute A is a ternary electrolyte and solute B is non-electrolyte. If 0.1 M solution of solute B produces an osmotic pressure of 2P, then 0.05 M solution of A at the same temperature will produce on osmotic pressure equal to

Anonymous User Chemistry Solutions 13 Mar, 2020 1 Answer 60 views


Dry air was passed successively through a solution of 5 g of a solute in 180 g of water and then through pure water. The loss in weight of solution was 2.50 g and that of pure solvent 0.04 g. The molecular weight of the solute is:

Anonymous User Chemistry Solutions 13 Mar, 2020 1 Answer 60 views























In the system, LaCl3(s) + H2O (g)+heat  ------------>.   LaClO(s)+2HCl (g), equilibrium is established. More water vapour is added to reestablish the equilibrium. The pressure of water vapour is doubled. The factor by which pressure of HCl is changed is

 

Anonymous User Chemistry Equilibrium 12 Mar, 2020 1 Answer 89 views


The partial pressure of CH3OH (g), CO(g) and H2(g) in equilibrium mixture for the reaction

CO(g) + 2H2(g) ----> CH3OH(g)

are 2.0, 1.0, and 0.1 atm respectively at 427°C. The value of Kp for decomposition of CH3OH to CO and H2 is

Anonymous User Chemistry Equilibrium 12 Mar, 2020 1 Answer 90 views



In a reaction at equilibrium ‘X’ moles of the reactant A decomposes to give 1 mole each of C and D. If the fraction of A decomposed at equilibrium is independent of initial concentration of A then the value ‘X’ is

Anonymous User Chemistry Equilibrium 12 Mar, 2020 1 Answer 56 views