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A solute will dissolve in a solvent when the attractive intermolecular forces between the molecules of the solvent and the molecules of the solute are greater than the attractive forces between one solute molecule and another. Thus the solute is effectively 'pulled apart' (on a molecular level at least) by the solvent and it's molecules become 'suspended' between the molecules of the solvent at which point the solute is said to be in solution or dissolved.
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What is the best solvent for phenol for use in Gas Chromatography?
water
Why the descending method of chromatography is faster than the other method?
Descending chromatography is faster because gravity aids in pulling the solvent down through the stationary phase, allowing for quicker elution of compounds. In this method, the analytes travel with the solvent flow, resulting in faster separation compared to ascending chromatography where the solvent has to move against gravity.
Is solvent extraction extraction a type of chromatography?
Solvent extraction is not a type of chromatography. Solvent extraction involves the separation of compounds based on their solubility in different solvents, while chromatography separates compounds based on their interactions with a stationary phase and a mobile phase.
What are the factors that affect leaf chromatography?
Factors that affect leaf chromatography include the polarity of the solvent used, the size and shape of the molecules being separated, the pH of the solvent, and the temperature at which the chromatography is performed. These factors can impact the rate at which the molecules move through the chromatography medium and the resolution of the separation.
What can you use instead of chromatography paper in a paper chromatography test?
Instead of chromatography paper, you can use materials like coffee filters, filter paper, or even paper towels for paper chromatography tests. These alternative materials can absorb the solvent and help separate the components of a mixture based on their solubility and molecular properties, similar to chromatography paper.
What is the best solvent for phenol for use in Gas Chromatography?
water
How is extraction related to chromatography?
Both are techniques of analytical chemistry and use a solvent.
What are the two types of paper chromatogaphy?
The two types of paper chromatography are ascending chromatography, where the solvent moves up the paper, and descending chromatography, where the solvent moves down the paper.
Why does carotene travel farthest in chromatography of leaf pigments?
Carotene travels the farthest in chromatography of leaf pigments because it is the least soluble in the chromatography solvent. This means it interacts less with the solvent and more with the chromatography paper, allowing it to move further up the paper before the solvent front stops it.
What is descending paper chromatography?
ascending chromatography is a type of chromatography in which chromatic substance is in mobile phase and moving from bottom to top. similarly in descending chromatography mobile phase moving from top to bottom.
Why the descending method of chromatography is faster than the other method?
Descending chromatography is faster because gravity aids in pulling the solvent down through the stationary phase, allowing for quicker elution of compounds. In this method, the analytes travel with the solvent flow, resulting in faster separation compared to ascending chromatography where the solvent has to move against gravity.
Is solvent extraction extraction a type of chromatography?
Solvent extraction is not a type of chromatography. Solvent extraction involves the separation of compounds based on their solubility in different solvents, while chromatography separates compounds based on their interactions with a stationary phase and a mobile phase.
What are the factors that affect leaf chromatography?
Factors that affect leaf chromatography include the polarity of the solvent used, the size and shape of the molecules being separated, the pH of the solvent, and the temperature at which the chromatography is performed. These factors can impact the rate at which the molecules move through the chromatography medium and the resolution of the separation.
What can you use instead of chromatography paper in a paper chromatography test?
Instead of chromatography paper, you can use materials like coffee filters, filter paper, or even paper towels for paper chromatography tests. These alternative materials can absorb the solvent and help separate the components of a mixture based on their solubility and molecular properties, similar to chromatography paper.
Would RF values of amino acid you use in paper chromatography be the same if you use another solvent system?
No, RF values depend on the specific solvent system used in the chromatography process. Changing the solvent system can alter the interactions between the amino acids and the stationary phase, resulting in different RF values. It is important to optimize the solvent system to achieve accurate and reproducible results.
Is methanol a good solvent to use in paper chromatography?
Methanol is a commonly used solvent in paper chromatography because of its polarity and ability to dissolve a wide range of compounds. It is especially good for separating polar compounds. However, caution should be taken as methanol is also toxic and flammable.
Why solvent is used in Paper chromatography?
Solvent is used in paper chromatography to carry the sample mixture along the paper and separate its components based on their affinity for the solvent and the paper. As the solvent moves through the paper, it dissolves the components of the sample and allows them to separate based on their solubility and interactions with the paper.
