A rough rule of thumb in polymer solution theory is that a 4 molar aqueous polymersolution will have an osmotic pressure of approximately 100 bar. Is this rule ofRT In(xwater)? A 4thumb in approximate agreement with the expression t=-V watermolar solution is 4 moles per liter of solution, which approximately contains 55 molesof water. First, show that the mole fraction of water xwater Will be 0.9322. Then use R =8.314x10-5 bar-m³/mol-K, T = 298.15 K, Vwater = 18.015×10-6 m/mol for theremainder of your calculation.

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