What is paper chromatography?
Paper chromatography 2023

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Chemistry
•
10th - 11th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A technique used to separate mixtures of substances based on their different affinities to a stationary phase (the paper) and a mobile phase (the solvent).
2.
FLASHCARD QUESTION
Front
What is the purpose of the starting pencil line in paper chromatography?
Back
It serves as a reference point for the initial position of the sample and should be below the solvent level to prevent the sample from dissolving in the solvent directly.
3.
FLASHCARD QUESTION
Front
What does the term 'retention factor' (Rf) mean in chromatography?
Back
It is a ratio that describes the distance traveled by a substance to the distance traveled by the solvent front, used to identify substances.
4.
FLASHCARD QUESTION
Front
How do polarities affect the movement of dyes in paper chromatography?
Back
Dyes with higher polarity will have a greater attraction to the polar paper and will travel less distance compared to less polar dyes.
5.
FLASHCARD QUESTION
Front
What happens to more soluble colors in paper chromatography?
Back
They will travel farther up the paper compared to less soluble colors.
6.
FLASHCARD QUESTION
Front
What is the relationship between the solvent and the starting pencil line in chromatography?
Back
The solvent should be below the starting pencil line to ensure that the sample does not dissolve directly into the solvent.
7.
FLASHCARD QUESTION
Front
What is the significance of the solvent in paper chromatography?
Back
The solvent acts as the mobile phase that carries the substances up the paper, allowing for separation based on solubility.
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