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Dipole Moment

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In a solution of 7.8 g benzene (C,H) and 46.0gtolueneC. H CH) the mole fraction of benzene is:-62 (4)3

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Q. In a solution of 7.8 gm benzene

C_{6} H_{6}

and 46.0 gm toluene

(C_{6} H_{5} {C H}_{3})

, the mole fraction of benzene in this solution is:

Q. Mole fraction of benzene in the vapours over a solution of benzene and toluene is 0.4. If the original vapour pressure of benzene is

150 m m H g

50 m m H g

, the mole fraction of benzene in the solution is:

The mole fraction of benzene in a solution in Toluene is 0.40. Calculate the weight percent of benzene in the solution.

Q. What is the composition of the vapour which is in equilibrium at

30^{\circ} C

with a benzene-toluene solution with a mole fraction of benzene of

0.40 ?

and with a mole fraction of benzene of

0.60 ?

P_{b}^{^{\circ}} = 119

P_{t}^{^{\circ}} = 37

Q. Benzene and toluene form an ideal solution. Vapour Pressure of pure benzene is 100 torr while that of pure toluene is 50 torr. If mole fraction of benzene in liquid phase is

\frac{1}{3}

, calculate the mole fraction of benzene in vapour phase.

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