9. When determining ethyl alcohol by gas chromatography, the dependence of the height of the peaks on the alcohol content was studied:
m, mg 2 4 6 8 10
h, mm 18 35 52 66 88
Calculate the mass fraction of alcohol in the test solution, if a peak with a height of 57 mm is obtained for 0.02 cm3 of it, the density of the solution is 0.950 g/cm3.

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