`0.068 dm^3` of a sample of nitrogen is collected is collected over water at `20^@C` and 0.92 bar of Hg.What is the volume of dry nitrogen at NTP? (aq.)tension of water at `20^@ is 0.023 bar of Hg)

160 ml of a gas are collected over water at 25^(@)C and 768.8mm Hg. If aqueous tension at 25^(@)C is 23.8 mm Hg, then pressure of dry gas at 25^(@)C is 1:29 PM

A sample of nitrogen gas occupies a volume of 320cm^(3) at STP. Calculate its volume at 66^(@)C and 0*825 bar presssure.

In a Duma's method 0.3g of an organic compound gave 50ml of nitrogen collected at 27^(@)C and 715mm pressure . The percentage of N is (aqueous tension at 27^(@)C=15mm ) :

Pressure of 0.210 bat at 37^(@)C . The vapour pressure of pure liquid vapour pressure of water at 37^(@)C is 0.198 bar in bar is

20 cm^(3) of a solution of oxalic acid requires 25 cm^(3) of 0.2 N potassium permanganate to react completely (a) Calculate the normality of oxalic acid solutions. (b) What volume of this oxalic acid solution when made upto 250 cm^(3) gives 0.2 N solution?

Estimate the mean free path and collision frequency of a nitrogen molecule in a cylinder containing nitrogen at 2.0 atm and temperature 17^(@)C . Take the radius of a nitrogen molecule to be roughly 1.0Å. Compare the collision time with the time molecule moves freely between two successive collision (M of N_(2)=28)

The vapour pressure of a solvent decreased by 10 mm of Hg when a non-volatile solute was added to the solvent. The mole fraction of solute is 0.2 , what would be the mole fraction of solvent if the decrease in vapour pressure is 20 mm of Hg .