If a substance is dissolved in a solvent, distillation allows recovery of both the solvent and the solute.
You can use a technique called distillation to separate the solvent from a solution. Distillation involves heating the solution to evaporate the solvent, then condensing the vapor back into a liquid form to collect the pure solvent.
In choosing solvent i would consider the following factors: What are the solutes? - are they polar or nonpolar how should they be dissolved What is the next step? - E.G. Do you need to distil or heat, then boiling point would be important. Is the solvent inert? Obviously side reactions are bad so choose a solvent which will not react. Good solvents are ethyl ether or ethyl alcohol.
If the original spots were below the level of developing solvent then the components of the spotted sample would dissolve into the solvent and no spots would be seen upon analysis because all of the sample is dissolved in the developing solvent. hope this helps. good luck in o. chem!
By placing the spot above the level of the solvent in the beaker, you slow the flow of solvent which results in improved separation of the components in the spot. If you placed it below the level of the solvent in the beaker, the solvent would just flow at a much faster rate and instead of separating the components in the spot, they would simply be washed away.
If a solvent were to be saved, distillation would be the separation technique of choice. Distillation involves heating the mixture to separate components based on their different boiling points, allowing the solvent to be collected and reused.
If a substance is dissolved in a solvent, distillation allows recovery of both the solvent and the solute.
You can use a technique called distillation to separate the solvent from a solution. Distillation involves heating the solution to evaporate the solvent, then condensing the vapor back into a liquid form to collect the pure solvent.
If a substance is dissolved in a solvent, distillation allows recovery of both the solvent and the solute.
In choosing solvent i would consider the following factors: What are the solutes? - are they polar or nonpolar how should they be dissolved What is the next step? - E.G. Do you need to distil or heat, then boiling point would be important. Is the solvent inert? Obviously side reactions are bad so choose a solvent which will not react. Good solvents are ethyl ether or ethyl alcohol.
Separation by chromatograhy
If the original spots were below the level of developing solvent then the components of the spotted sample would dissolve into the solvent and no spots would be seen upon analysis because all of the sample is dissolved in the developing solvent. hope this helps. good luck in o. chem!
By placing the spot above the level of the solvent in the beaker, you slow the flow of solvent which results in improved separation of the components in the spot. If you placed it below the level of the solvent in the beaker, the solvent would just flow at a much faster rate and instead of separating the components in the spot, they would simply be washed away.
A technique called chromatography or a technique called filtration could be used to separate the red and blue marbles. chromatography would depend on the differences in solubility between the red and blue marbles, while filtration would depend on differences in size or density between the marbles.
One of the considerations of a chromatographic solvent is whether it will bring out the different Rf values of the samples that are being used. If all of the compounds have the same Rf values then the separation of pigments would have failed due to the fact that all of them are in the same spot.
You would recrystallize a solid from a solvent pair because if only one solvent was used, then it might be hard to dissolve the solute. In a solvent pair, one solvent would probably be better at dissolving the solute.
You can use a solvent such as ethanol or acetone to dissolve the paint and separate out the dyes. The different dyes will have varying solubilities in these solvents, allowing for separation based on their respective properties.