117. Solving a chemistry problem
923. It has been established that at 20 °C the relationship between the intrinsic viscosity of a polyisobutylene solution and its molar mass M is described by the formula
[η] (l/g) = 3.60*10-4*M0.64. Determine the molar mass of the polyisobutylene fraction in the solution whose intrinsic viscosity is 1.80 m3/kg.
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