NaCl and . M K SO d) . M Ba (NO ) and . M Na SO .
The empirical formula of a non- electrolyte(X) is CH O. A solution containing six gram of X exerts the same osmotic pressure as that of .025M glucose solution at the same temperature. The molecular formula of X is a) C H O b) C H O c) C H O d) CH O . The K H for the solution of oxygen dissolved in water is × atm at a given temperature.
If the partial pressure of oxygen in air is . atm, the mole fraction of oxygen in solution is a) . × b) . × c) × – d) × .
Normality of .25M sulphuric acid is a) . N b) . N c) . N d) .
N Unit Unit - - - - . Two liquids X and Y on mixing gives a warm solution. The solution is a) ideal b) non-ideal and shows positive deviation from Raoults law c) ideal and shows negative deviation from Raoults Law d) non-ideal and shows negative deviation from Raoults Law . The relative lowering of vapour pressure of a sugar solution in water is .
× – . The mole fraction of water in that solution is a) . b) . c) .
/ d) . . The mass of a non-voltaile solute (molar mass g mol – ) which should be dissolved in 92g of toluene to reduce its vapour pressure to % a) 10g b) 20g c) . g d) .89g .
For a solution, the plot of osmotic pressure ( p ) verses the concentration (c in mol L – ) gives a straight line with slope 310R where 'R' is the gas constant. The temperature at which osmotic pressure measured is a) × . K b) o C