910. The table below shows the results of viscometric measurements of solutions of several polystyrene fractions in methyl ethyl ketone at 22 °C.
M, g/mol 1760 1620 1320 980 940 520 318 230
[η], dl/g 1.65 1.61 1.40 1.21 1.17 0.77 0.60 0.53
Find the coefficients of the Mark-Houwink equation for the given system.

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