Question

2. What is the mobile phase used for paper chromatography experiment of ink? 3. Write the equation for Retention Factor Rf. What does the Rf value tell you about the solubility of a separated component in the mobile phase solvent? 4. It was suspected that a particular mixture contained three components: X, Y and Z. To check this, the mixture was analyzed by thin layer chromatography. In this experiment a nonpolar solvent was used with a polar stationary phase. The following results were obtained: cm -6- -5- -4- -3- -2- -1- -0- solvent front origin line X Y Z sample before X Y Z sample after (a) Is there X, Y, or Z in the sample mixture? (b) Are there other component in the sample? (c) Calculate the Rf value of X, Y and Z.

          2. What is the mobile phase used for paper chromatography
experiment of ink?

3. Write the equation for Retention Factor Rf. What does the Rf
value tell you about the solubility of a separated component in
the mobile phase solvent?

4. It was suspected that a particular mixture contained three
components: X, Y and Z. To check this, the mixture was
analyzed by thin layer chromatography. In this experiment a
nonpolar solvent was used with a polar stationary phase. The
following results were obtained:
cm
-6-
-5-
-4-
-3-
-2-
-1-
-0-
solvent front
origin line
X Y Z sample
before
X Y Z sample
after
(a) Is there X, Y, or Z in the sample mixture?
(b) Are there other component in the sample?
(c) Calculate the Rf value of X, Y and Z.

2. What is the mobile phase used for paper chromatography
experiment of ink?

3. Write the equation for Retention Factor Rf. What does the Rf
value tell you about the solubility of a separated component in
the mobile phase solvent?

4. It was suspected that a particular mixture contained three
components: X, Y and Z. To check this, the mixture was
analyzed by thin layer chromatography. In this experiment a
nonpolar solvent was used with a polar stationary phase. The
following results were obtained:
cm
-6-
-5-
-4-
-3-
-2-
-1-
-0-
solvent front
origin line
X Y Z sample
before
X Y Z sample
after
(a) Is there X, Y, or Z in the sample mixture?
(b) Are there other component in the sample?
(c) Calculate the Rf value of X, Y and Z.

Added by Donna G.

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