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Why must a funnel be heated before hot acetanilide solution is heated and filtered?
Wiki User
∙ 13y ago
Most likely so the glass will not crack as it expands as a result of being heated by a hot solution being poured into it.
Viva Bashirian
Wiki User
∙ 11y agoI will assume this has to do with recrystallisation.
When performing recrystallisation, it is important to keep all of the equipment, glassware and solutions hot to avoid the goal product to crystallise while it is being filtered. If this occurs product will be lost.
If this does happen, rinsing with heated solvent may redissolve the crystallised product from the filter paper and recover it. The extra solvent will make recrystallisation more difficult later though.
Wiki User
∙ 15y agoMost likely so the glass will not crack as it expands as a result of being heated by a hot solution being poured into it.
Wiki User
∙ 13y agoIt reduces premature crystralization in the funnel which would block it up.
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How do you separate chloroform from an aqueous solution by using separating funnel?
try distilling the solution..
How do you prepare baljet reagent?
Baljet reagent freshly prepared (95 ml 1% picric acid + 5 ml 10% NaOH) mixed immediately before use and filtered through a sintered glass funnel.
What is the function of filter funnel?
Separation of solids from a liquid solution.
What is the rule about the size of filter paper to be used with a funnel?
Usually, it's used to separate a precipitate from the liquid in the solution. The filter paper is folded into quarters and placed in the funnel. The solution is then poured onto the filter paper, where the liquid filters through and the precipitate stays on the filter paper. The precipitate can then be saved or discarded, depending on which part of the solution you want.
Why do you need to remove the funnel before carrying out the titration?
chicken
Which mixture is separated by a separating funnel?
only suspended particles are filtered
Where should the stem of a funnel be during filteration?
The stem of a funnel needs to be firmly set in the container that you wish the filtered item be stored in. The stem is the smaller part of the funnel usually located at the bottom of the funnel.
Why must the stem of the funnel touches the inside surface of the collecting beaker during the filtration?
it's done to minimize the mixing of air into the filtered solution. By touching the stem to the collecting beaker, the solution flows into the beaker smoothly rather than splashing into it.
Why must the stem of the funnel touch the inside surface of the collecting beaker during filtration?
it's done to minimize the mixing of air into the filtered solution. By touching the stem to the collecting beaker, the solution flows into the beaker smoothly rather than splashing into it.
How do you separate chloroform from an aqueous solution by using separating funnel?
try distilling the solution..
How do you prepare baljet reagent?
Baljet reagent freshly prepared (95 ml 1% picric acid + 5 ml 10% NaOH) mixed immediately before use and filtered through a sintered glass funnel.
How does a themos flask work?
Also known as a Buchner or vacuum flask, the flask uses vacuum to filter samples. A vacuum hose is attached to the hose barb and the funnel is placed on top. As the hose creates a vacuum, the sample is filtered through the funnel.
Why moist the filtering paper before placing it in the funnel?
Wet filter paper adheres better to the funnel.
How could a solution of copper chloride and water be separated into starting substances?
by using separating funnel
What is the function of filter funnel?
Separation of solids from a liquid solution.
How do you separate soil from water quickly?
If you have a multipurpose funnel and some tissue paper, layer two or three peices and carefully place them inside the funnel as one sheet. Put the funnel over a glass and add the solution into the funnel (not too much) and wait for results. Mail me back if the results were positive.
What a filter funnel and paper used for?
Usually, it's used to separate a precipitate from the liquid in the solution. The filter paper is folded into quarters and placed in the funnel. The solution is then poured onto the filter paper, where the liquid filters through and the precipitate stays on the filter paper. The precipitate can then be saved or discarded, depending on which part of the solution you want.
