43. Solution to Chemistry Problem
1. The reaction mass after nitration of toluene was analyzed by gas-liquid chromatography using ethylbenzene as an internal standard. Determine the percentage of unreacted toluene based on the experimental data if: A is the mass of toluene, g; B is the mass of added ethylbenzene, g; Sst is the peak area of the toluene chromatogram, mm2; Sx is the peak area of the standard chromatogram (ethylbenzene), mm2; kx is the correction factor for toluene; kst is the correction factor for the standard.
Option # 1
A, g 12.7500
B, g 1.3325
Sx, mm2 307
kx 1.01
Sst, mm2 352
kst 1.02
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