6. When separating three amino acids on chromatographic paper, the solvent front passed 16.2 cm from the start line, aspartic acid passed 2.3 cm from the start line, glutamine - 3.9 cm, alanine - 9.6 cm, unknown substance - 7, 4 see Calculate the Rf parameter for each component. Is it possible to identify an unknown substance? Schematic representation of the chromatogram.

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