Question

question 3. a student has a dried spot of purple ink that contains a mixture of two different dyes whose properties are described in the table below.
substance form at r.t.p. solubility boiling point magnetism
blue dye solid powder very soluble n/a not magnetic
red dye solid powder slightly soluble n/a not magnetic
the student wants to separate the dyes from each other. he decides to use chromatography with water as the solvent.
part a. which of the substances is more soluble? the blue dye is more soluble than the red dye.
part b. when the water soaks up the paper strip, what will happen?
part c. can chromatography be used to effectively separate the dye

Explanation:

Step1: Understand chromatography principle

In chromatography, more - soluble substances move further with the solvent.

Step2: Analyze solubility of dyes

Blue dye is very soluble and red dye is slightly soluble in water.

Step3: Predict movement

Since blue dye is more soluble, it will travel further with the water as the solvent on the paper strip.

Answer:

The blue dye will travel further than the red dye.