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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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14y ago
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14y ago

Solvents dissolve the solutes. Ex: water=solvent, powdered juice=solute Water is needed to dissolve the powdered juice so it can result in a juice drink.

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11y ago

to elute / move the components in a mixture and to separate them.

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zara loves sanaa

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Q: Why do you use a solvent in chromatography?
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Related questions

What is the best solvent for phenol for use in Gas Chromatography?

water


Is methanol a good solvent to use in paper chromatography?

Because methanol is a very polar solvent


How is extraction related to chromatography?

Both are techniques of analytical chemistry and use a solvent.


What does it mean if the spot is in the solvent front in chromatography?

it means that the solvent dissolves the solute.


What are the relations with pigment and chromatography?

the more soluble the plant pigment is with the chromatography solvent, the farther it will travel up the chromatography paper


Why solvent is used in Paper chromatography?

In chromatography you need one stationery phase (paper) and one mobile phase (here solvent, moving by capillary forces)


What is the moving solvent called in chromatography?

Mobile phase.


Would RF values of amino acid you use in paper chromatography be the same if you use another solvent system?

Rf value is the ratio of distanced covered by solute by distanced covered by solvent.


What uses electrostatic attraction to separate a solute from a solvent?

Chromatography


Why the descending method of chromatography is faster than the other method?

•Descending chromatography is faster because gravity helps the solvent flow.


What is the significance of Rf value in chromatography?

See related link below for a better explanation than mine.. I am not to familiar with Rf values, but I have an idea. Rf values are the ratio between the distance traveled by the spot of the analyte to the distance traveled by the solvent used. This is used in paper chromatography and thin layer chromatography. Rf value will allow you to compare to your unknown substance that you are trying to analyze. I will put a link the both paper and TL chromatography.


What is a suitable solvent for paper chromatography?

In paper chromatography n-butanol:acetic acid:water mixture in the ratio 4:1:1 is used as a solvent whereas in case of thin layer chromatography(TLC) petroleum ether and acetone in the ratio 9:1 is used as a solvent. Also, in some cases, DCM(dichloromethane is used as a solvent.