The determination of the average molar masses of conducting polymers is an important part of their characterization. S. Hold croft (J. Poiym. Sci, Polym Phys. 29, 1585 (1991)) has determined the molar masses and Mark-Houwink constants for the electronically conducting polymer, poly(3-hexylthiophene) (P3HT) in tetrahydrofuran (THF) at 25°C by methods similar to those used for non-conducting polymers. The values for molar mass and intrinsic viscosity in the table below are adapted from their data. Determine the constants in the Mark-Kuhn-Houwink-Sakurada equation from these results and compare to the values obtained in your solution to Problem 19.7.

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15.3 58.8 |M,/(kg mol-) 3.8 11.1 In1/(cm g) 23.73 6.23 85.28 17.44