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intermolecular forces experiment question The more polar mobile phase is the 20% acetone solution (since it...

intermolecular forces experiment question

The more polar mobile phase is the 20% acetone solution (since it is 80% water). Paper is made from cellulose which contains a lot of oxygen atoms and OH groups. Write a short paragraph discussing which solvent best separated the ink components from the Vis-a-Vis pens. Consider in your discussion the relative attraction of the ink components for the solvent and for the paper. Does your discussion support the statement that these pens are water soluble?

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Answer #1

We know that different substance show different degree of solubility in different solvents based on the typer of interaction between them.

The substance which can form strong attractions with solvent are more soluble in them.

The same is true for ink components present in a given ink sample during sepration by paper chromatrography.

The more polar solvent (more amount of water) will rise easily on the chromatography paper as they share a bond of attraction which is hydrogen bond between water molcules and hydroxyl group present on the cellulose of paper.

In chromatography there are two different phases, one is mobile phase which is the solvent wjile the other phase is stationary phase(paper in this case). The water soluble part of ink will move faster alongwith the mobile phase on the stationary phase.

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