wiz-icon
MyQuestionIcon
MyQuestionIcon
2
You visited us 2 times! Enjoying our articles? Unlock Full Access!
Question

The vapour density of a sample of hydrogen fluoride gas is found to be 12.5. If it is due to dimerisation of some HF molecules to H2F2 molecules, then the percentage of HF molecules dimerised is: (F = 19)

Open in App
Solution

By using the formula,
Vapour density=Molar Mass2
Molar Mass= Vapour density ×2
Mavg=12.5×2=252HF H2F21α α/21α/2=ntotal
Mole = mass /molar mass
(1α2)×25=1×20α=0.4

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Physical Properties
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon