Description
I need help completing this lab, I am having a hard time doing the lab at home and answering all of the questions.
Unformatted Attachment Preview
Purchase answer to see full attachment
Explanation & Answer
Attached.
Community College of Philadelphia
Department of Chemistry
Laboratory Report Sheet
Name:
Date:
Email:
Laboratory Instructor: Prof. G. Brown or Prof. M. Gregor
Course Nbr.: CHEM 101 Distance
Section:
Experiment Nbr.: 4
Experiment Title: PAPER CHROMATOGRAPHY
Purpose: To analyze how chromatography can be used to separate mixtures of pen ink.
Concepts related to the textbook: Paper chromatography
Conclusion: The experiment showed the chromatography process which is applicable in
separating mixture of pigments into their individual components so that they can be analyzed
disctinctly. The experiment bshowed that the solvency and the movement of the colors are
significantly different because while some colors spread for a long distance, some moved for only
a shorter distance.
document1
1 of 7
Community College of Philadelphia
Department of Chemistry
EXPERIMENT 4- PAPER CHROMATOGRAPHY
Background
Paper Chromatography is a purification technique used to separate a sample mixture into its pure
components. The word "chromatography" is defined as “graphing of colors" (Tswett, 1906). Tswett
used this technique to separate a mixture of colored pigments from leaves. Now, the technique is
applied to colorless compounds and ions as well.
Chromatography separates substances in a sample mixture. The sample is placed on filter (or
chromatography) paper that is set up s...