Chemistry, 11.04.2020 04:26 raulriquelmef6p0947w
Equilibrium osmotic pressure heads h measured at 22°C for a series of solution of a polystyrene sample in toluene are tabulated below: Polystyrene concentration, g/dm3 2.6 5.2 8.7 11.8 15.1 h, mm toluene 5.85 12.93 24.37 36.34 50.99 Assuming that the densities of the toluene and polystyrene are 0.867 g/cm3 and 1.05 g/cm3 , calculate the following: (a) The number average molar mass for the sample of polystyrene (b) An estimate of the Flory-Huggins polystyrene-toluene interaction parameter
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Equilibrium osmotic pressure heads h measured at 22°C for a series of solution of a polystyrene samp...
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