122. Solving a chemistry problem
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122. Solving a chemistry problem
A sample of 1.22 g of polystyrene was dissolved in methyl ethyl ketone to a solution volume of 100 ml at 25°C. In a turbidimetric study in a cell 1.00 cm long, the intensity of light with a wavelength of 546 nm decreased to 0.9907 of the intensity of the incoming light. Calculate the turbidity of the solution and the molar mass of the polymer, assuming the virial coefficients are zero. Light scattering constant H=6.25 * 10-4 m2 mol/kg2.
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