39. Решение задачи по химии №003 944

523. The osmotic pressure of a copolymer of styrene with methacrylic acid in toluene at 27 C was studied. The results are summarized in the following table, where Δh is the difference in toluene levels (density 0.862 g/cm3) in the measuring and comparative capillaries of the osmometer:
s, g/l 1.10 2.18 5.42 7.69 8.50 9.48
Δh, cm 0.115 0.442 1.263 2.223 2.765 3.235
Calculate the mass of the copolymer.

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