Question

Not for Juniors. .

One mole of nitrogen gas at 0.8 atm takes 38 s
to diffuse through a pin hole whereas one mole
of an unknown compound of Xenon with
fluorine at 1.6 atm takes 57 s to diffuse through
the same hole. Calculate the molecular formula
of the compound.
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Answer 1

I have attached the figure hope it helps you my dear friend