A Gaseous Affair!

1) The rate of diffusion of 2 gases 'A' and 'B' are in the ratio 16:3. If the ratio of their masses present in the mixture is 2:3, then find

(i) The ratio of their molar masses
(ii) The ratio of their moles present inside the container?

2) Calculate the radius of He atoms if its Van der Waal's constant 'b' is 24ml mol^-1
(Note ml=cubic cm)

(i)1.355 Angstrom
(ii)1.255 Angstrom

PLS GIVE SOLUTIONS...THE ANSWERS ARE ALREADY KNOWN 2 ME..I AM LOOKIN FOR THE SOLUTION

1 Answers

1.Use basic formulae:

d1/d2=(n1/n2)√M2/M1
where:
d=rate of diffusion
n=moles
M=molecular mass

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