Question

The Vapour density of a mixture containing NO2 and N2O4 is 38.3 at 300K. the number of moles of NO2 in 100g of the mixture is approximately

0.44

4.4

33.4

3.34​

Answer 1

Answer:

Vapour density of NO

2

+N

2

O

4

= 38.3

Mass of 1 mole of mixture = vapour density × 2 = 76.6

Number of moles in the mixture =

76.6

100

=1.305

Let the mass of NO

2

be x

46

x

+

92

100−x

=1.305

x=20.1

Number of moles of NO

2

present in 100gm of the mixture =

46

20.1

=0.437

Explanation:

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