Question

can you answer my question:vapour density of a mixture of no2 and n2o4 is 34.5.what are the ratio of their mole?

Answer 1

Let n be a fraction

For NO2, the molar mass is 30
For the dimerised N2O4, Molar mass is: 60

34.5=n60+(1-n)30
n= 0.15

ratio of N2O4:NO2 is thus
15:85