Journal Entry:

What should you do after pulling the strips out of the solvents?   

Learning Intentions

• We will learn how solutes can be separated by chromatography based on intermolecular interactions.

• We will learn how to interpret results of a separation experiment using paper chromatography in terms of the relative strength of interactions among and between the components.

• We will analyze the effectiveness and greenness of various solvents in separating mixtures of substances.

Closing Task:

You can collect data, modify procedures and analyze results of a separation experiment to understand the interactions between components.

Content Standards being covered:

  Solutions are homogenous mixtures in which the physical properties are dependent on the concentration of the solute and the strengths of all interactions among the particles of the solutes and solvent. (EK 2.A.3)