calculate the mole % of toluene and heptane that will have a refractive index of 1.474 assuming a linear relationship between the refractive indices of the two.
I need your help very badly. Any suggestions to formulas or at least guesses? I'll appreciate it. Thanks
2006-09-16 20:47:30 · 4 answers · asked by luzdary t 1 in Science & Mathematics ➔ Physics
You will need to look up the refractive index of toluene and heptane in the Chemical Handbook or Handbook of Physics. Then use linear interpolation to find the proportions needed to produce the number you want.
2006-09-16 20:57:55 · answer #1 · answered by gp4rts 7 · 0⤊ 0⤋
refractive index = tan (mu) {by brewster's law }
1.476 = tan (mu)
this is up to physics .
when comes to chemistry ,
u have to find , how much grams of toluene will give refractive index as much as 1.474 and same for that heptane .
hint : mole fraction Xa = a/a+b
2006-09-16 20:55:12 · answer #2 · answered by haja j 1 · 0⤊ 0⤋
You will need the separate refractive indices of the substances in question. Once you have them, the problem is easily solved by algebra.
2006-09-16 20:52:57 · answer #3 · answered by Anonymous · 0⤊ 0⤋
use formulassssssss
hehehe
2006-09-16 20:55:17 · answer #4 · answered by Anonymous · 0⤊ 0⤋