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AP Chemistry
3.9 Separation of Solutions and Mixtures
IntermediateMCQConceptualExperimental16.8k
Experimental setup for paper chromatography.
Experimental setup for paper chromatography.
A student sets up a paper chromatography experiment to separate pigments extracted from spinach leaves. Polar filter paper is used as the stationary phase, and a nonpolar organic solvent mixture is used as the mobile phase. As shown in the diagram, the student adds solvent to the beaker such that the liquid level is above the baseline where the spinach extract was spotted. Which of the following best predicts and explains the effect of this procedural error on the experiment?

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