Question

If 1.0 DM3 of gas X diffuses through a porous plug in 60 seconds, whole the same volume of hydrogen diffuses in 16 seconds under the same conditions, calculate the relative molecular mass of x (H=1)

Answer 1

Answer:

28.15 or 28(approx)

Explanation:

sqr. root of RMM1 / sqr. root of RMM2 = T1/T2

sqr. root of RMM of H2 gas / sqr. root  of RMM of X gas = 16 / 60

sqr. root of 2 / sqr. root of RMM of X = 16/60

sqr. root of 2 / sqr. root of X= 4/15

15 * sqr. root of 2 = 4 * sqr. root of X

15^2 * 2 = 16 * X

450 = 16X

X=450/16

28.125(approximately 28)

Therefore the RMM of X =28.15 or 28(approx)