3. The following peaks were found on the gas-liquid chromatogram of a mixture of alcohols:
Alcohol Peak area, cm2 Calibration factor
Ethanol 3.25 0.72
n-propanol 2.15 0.71
isopropanol 1.14 0.78
n-butanol 0.84 0.77
isobutanol 0.52 0.76

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