You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Chemistry

Liquids in Liquids

Calculate mol...

Question

Calculate molecular weight of the compound if 0.168 g of it displaces 49.4ml of air measured over water at 20°C and 740mm of pressure (aqueous tension at 20°=18mm)

Open in App

Solution

Suggest Corrections

Similar questions

Q. A volatile organic compound weight

0.2

g, displaced

30

ml of air at

27^{0} C

and

756

mm, what will be the molecular mass of the compound?

[At

27^{0} C

, aqueous tension is

26

mm]

Q. A volatile organic compound weighing

0.2

g, on heating in Victor Meyer's tube, displaced

30

mL of air at

27^{0} C

and

756

mm atmospheric pressure. Determine the molecular mass of the compound (Aqueous tension at

27^{0} C = 26

mm).

Q. An aqueous solution containing 20% by weight of liquid 'X' (

m o l . w t . = 140 g / m o l

) has a vapour pressure of

160 m m H g

60^{\circ} C

. Calculate the vapour pressure of pure liquid 'X' if the vapour pressure of water is

150 m m H g

60^{\circ} C

190.0 ml of $N_{2}$ was collected in a jar over water at some temperature, water level inside and outside the jar standing at the same height. If barometer reads 740 mm Hg and aqueous tenstion at the temperature of the experiment is 20 mm Hg, the volume of the gas at 1 atm pressure and at the same temperature would be ?

Q. What is the percentage of nitrogen in an organic compound,

0.14

g of which gave by Dumas method,

82.1

cc of nitrogen collected over water at

27^{o} C

and at a barometric pressure of

774.5

mm? (aqueous tension of water at

27^{o} C

14.5

mm)

Join BYJU'S Learning Program