Under certain conditions neon gases diffuse at a rate of 7.0 cm/s under the same conditions as an on known gas defuses at a rate

Question

Katen [24]

3 years ago

11

Under certain conditions neon gases diffuse at a rate of 7.0 cm/s under the same conditions as an on known gas defuses at a rate

of 4.9 Per second what is the approximate molar mass of the unknown gas?

Chemistry

1 answer:

Norma-Jean [14] · Answer 1 · 2022-05-03T20:21:10+03:00

Answer : To find the molar mass of unknown gas we need to solve the equation of rate of diffusion and molecular weight of the gases, which is as follows;

$\frac{rate of diffusion of gas A X \sqrt{mol wt of gas B} }{rate of diffusion of gas B X \sqrt{mol wt of gas A} } =1$

here the mol wt of gas B is not known so we take it as '<em>x'

</em>on solving we get 7 X $\sqrt{x}$ / 4.9 X $\sqrt{41}$
<em>
</em>mol. wt of unknown gas = 20.0 g