54. Solving a chemistry problem
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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
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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