77. Solving a chemistry problem

77. Solving a chemistry problem

2. Calculate Rf and Rs of substance Z, if the path length of the solvent is 50mm, the distance from the start line to the center of the chromatographic zone of substance Z is 25mm, the distance from the start line to the center of the spot of the standard substance is 27mm. Which of the two above characteristics of the mobility of the substance Z is more objective?

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