State Graham's law of diffusion. A vessel of volume 100ml contains 10% O2 and 90% unknown gas. The gases diffuse in 86

sec. through a small hole of the vessel. If pure oxygen under the

same condition diffuses in 75 sec. Find the molecular mass of

unknown gas.

did anyone actually do this? like if anyone has submitted this i rly need .

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer

it would be a gas formation