55. Solving a chemistry problem
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55. Solving a chemistry problem
327. Based on the data of the osmometric method obtained at a given temperature T, calculate the molar mass of polyvinyl chloride in cyclohexane. R = 8.314 J/K*mol; [M] = kg/kmol or g/mol.
Concentration, kg/m3 Osmotic pressure, N/m2
T С1 С2 С3 С4 С5 π1 π2 π3 π4 π5
298 4 6 10 14 18 69.6 107.8 193.1 292.0 395.9
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