140. Solving a chemistry problem

140. Solving a chemistry problem

132. The reaction mass after nitration of toluene was analyzed by gas-liquid chromatography using ethylbenzene as an internal standard. Determine the mass fraction (%) of unreacted toluene from the obtained experimental data in accordance with the problem number - table 43.
Table 43
Problem number 132
Taken weight, g:
mtoluene 8.54
methylbenzene 2.75
Stoluene, mm2 55
k1 1.01
S ethylbenzene, mm2 80
k2 1.02

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