A-LevelChemistryAnalytical techniquesOct/Nov 2018Paper 4 Q111 Marks
Answer all the questions in the spaces provided. (a) An alkene, a carboxylic acid and a ketone, all of similar volatility, are mixed together. The mixture is then analysed by gas chromatography. The gas chromatogram produced is shown. [Figure 1.0] The separation of the three compounds depends on their relative solubilities in the liquid stationary phase. The liquid stationary phase is an alkane.
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