103. Solving a chemistry problem
501. Determine the molar mass of a sample of nitrocellulose from the following data on the dependence of the osmotic pressure of its solution in methanol on concentration at 20 ° C:
s, g/L 0.55 1.25 2.28 6.65 12.1
π, Pa 13.1 32.0 62.1 237 612
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