The osmotic pressure of a fraction of poly(vinyl nchloride) in a ketone solvent was measured at 25°C. The density of the solvent (which is virtually equal to the density of the solution) was 0.798 g cm-3. Calculate the molar mass and the osmotic virial coefficient, B, of the fraction from the following data:
|
c/(g /102cm3)
|
0.200
|
0.400
|
0.600
|
0.088
|
1.000
|
|
h/cm
|
0.48
|
1.2
|
1.86
|
2.76
|
3.88
|