11 Questions
Why is a pencil used to draw the baseline and midline on the chromatography paper?
To prevent experimental error in chemical separation
Why is it important to ensure a gap between the ink dot and the solvent?
To prevent the ink from mixing with the solvent
What is the purpose of taping the other end of the chromatography paper to a pencil?
To secure the paper in place
How long should the chromatography process take?
15 minutes
What is the purpose of repeating the experiment with different types of black ink pen/marker?
To analyze the components of different inks
What is the main objective of paper chromatography?
To identify an unknown compound by comparing it to known compounds
What is the stationary phase in paper chromatography?
The paper before the solvents start to move up
What allows the solvent to travel up the paper in paper chromatography?
Capillary action
What determines how quickly a pigment travels up the paper in paper chromatography?
The solubility of the pigment in the polar solvent
What is the purpose of using a polar solvent in paper chromatography?
To separate the pigments based on their solubility
What can be used as a substitute for chromatography paper in paper chromatography?
White paper towels
Learn about the techniques and principles of paper chromatography, a method used to separate and identify chemicals based on their properties. Discover its applications in crime scenes and laboratories. Understand the stationary and mobile phases involved in the process.
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