54. Solving a chemistry problem

54. Solving a chemistry problem

66. Determine the mass of toluene in the mixture after nitration using the internal standard method, if the following data were obtained during GC chromatography (the internal standard is ethylbenzene):
a) during calibration - tt = 0.00375 g, ST = 6.38 cm2, teb = 0.00869 g, Seb = 8.47 cm2;
b) during analysis — ST = 9.38 cm2, teb = 0.00465 g, Seb = 4.61 cm2

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