QuestionSolutions / osmotic pressure of polymers
A polymer X is dissolved in a suitable solvent and the osmotic pressure (π) of solutions of various concentrations (c) is measured at 27°C. The intercept of a plot of \(\frac{\pi/(N\,m^{-2})}{c/(g\,dm^{-3})}\) against c/(g dm⁻³) is found to be 25. The molar mass of X in kg mol⁻¹ is (Given : R = 8·314 J K⁻¹ mol⁻¹)
- (a) 100
- (b) 997
- (c) 9976
- (d) 99768
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