12. Using the values of the reduced viscosity for different concentrations of nylon in formic acid and the viscosimetric constants
the equations K = 11⋅10 -5 and α = 0,72, calculate the molecular weight of nylon:
Concentration of solution C, kg / m 3 0.5 1.0 1.5 2.0 2.5
The resulted viscosity η ud / C 0.09 0.096 0.104 0.109 0.117
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