A solution consisting of isobutyl bromide and isobutyl chloride is found to have a

Question

refractive index of 1.3931 at 20oC. The refractive indices at 20oC of isobutyl bromide
and isobutyl chloride are 1.4368 and 1.3785, respectively. Determine the molar
composition (in percent) of the mixture by assuming a linear relation between the
refractive index and the molar composition of the mixture

Answer 1

I answered this question for a student a couple of days ago. If you did not see the post I shall post it again.

Answer 2

Can you please post this answer again?