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The level of the solvent is lower than the level of the spots in chromatography because the spots consist of the substances being separated, which are often more concentrated than the solvent itself. As the solvent moves up the chromatography medium, it carries the substances with it, but the spots do not dissolve completely or entirely at the solvent front. This allows the substances to travel at different rates based on their affinities for the stationary phase and the solvent, resulting in distinct spots above the solvent level.
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What 2 solute molecules mixed with the solvent molecules in a solution cause the freezing point of a solution to be than it is for an equal volume of pure?
Adding solute molecules such as salt or sugar to a solvent like water will lower the freezing point of the solution compared to the pure solvent. This occurs because the presence of these solute molecules disrupts the regular arrangement of solvent molecules, making it more difficult for the solvent to freeze.
Are collisions between solvent molecules and solute are more frequent at lower or higher temperatures?
Collisions between solvent molecules and solute are more frequent at higher than lower temperatures.
What problem will ensue if the level of the developing liquid is higher than the applied spot in a TLC analysis?
The effect on chromatographic work if the solvent level in the developing chamber is higher than the spotted sample is a thin layer chromatography. The solvent becomes polar enough and spot will move some distance.
Will solvent in water make it freeze faster?
No, adding a solvent to water typically lowers the freezing point of the solution, causing it to freeze at a lower temperature than pure water.
Does a solutions contain solvent in large amounts and solutes in smaller quantities?
Yes, a solution typically contains a larger amount of solvent compared to the amount of solutes. Solvent is the substance that dissolves the solute, while solute is the substance that is dissolved in the solvent. The concentration of solutes in a solution is usually lower than the concentration of the solvent.
Why must the solvent level be below the colored spots in chromatography?
If the colored spot is below the level of the solvent, the spot will simply dissolve into the solvent.Chromatography works because the solvent climbs up the 'column' by capillary action, picking up the colored spots along the way and dragging them along. Because of the chemistry of the colors and the solvents, some of the colors in the spots are easier to drag along the column than others, and move along faster.
Explain why a solution has a lower boiling point than the pure solvent?
When a solute is added to a solvent, the vapor pressure of the solution decreases compared to the pure solvent. This means the solution needs less energy to overcome atmospheric pressure and boil. As a result, the boiling point of the solution is lower than that of the pure solvent.
What 2 solute molecules mixed with the solvent molecules in a solution cause the freezing point of a solution to be than it is for an equal volume of pure?
Adding solute molecules such as salt or sugar to a solvent like water will lower the freezing point of the solution compared to the pure solvent. This occurs because the presence of these solute molecules disrupts the regular arrangement of solvent molecules, making it more difficult for the solvent to freeze.
Supersaturated means that a solvent can dissolve solute than at a lower temperature?
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At what temperature must a solution be to freeze, in comparison to a pure solvent?
A solution must be at a lower temperature than a pure solvent to freeze.
Are collisions between solvent molecules and solute are more frequent at lower or higher temperatures?
Collisions between solvent molecules and solute are more frequent at higher than lower temperatures.
What is the lower alcohol level 08 or 0.01?
The lower level is .01, which is much lower than .08.
What problem will ensue if the level of the developing liquid is higher than the applied spot in a TLC analysis?
The effect on chromatographic work if the solvent level in the developing chamber is higher than the spotted sample is a thin layer chromatography. The solvent becomes polar enough and spot will move some distance.
Why air-conditioners are usually placed at a higher level rather than a lower level?
air-conditions are usually placed at a higher level rather than at a lower level.
Is a 1.29 creatinine lower than 1.3?
Is a 1.29 creatinine level lower than 1.3
A lower than normal level of oxygen in tissues is called?
A lower than normal level of oxygen is called hypoxia.
Is it possible to increase a solvent's boiling point to more than 2500C?
The boiling point of beryllium is 2742 °C at sea level. If you can't move the solvent's boling point, you can always choose a different solvent.
