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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
Heating the funnel prior to filtering hot acetanilide solution helps to prevent the solution from cooling too rapidly upon contact with the cold funnel, which could cause crystallization and clogging of the funnel. This ensures smoother filtration and prevents potential blockages or inefficiencies in the filtration process.
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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Show me a diagram of funnel experiment in the preparation of hcl?
I'm unable to display diagrams in this format. However, in the experiment to prepare hydrochloric acid (HCl) using a funnel, you would typically mix hydrochloric acid (HCl) and water in a beaker, place a funnel over another container, and pour the solution through the funnel to separate any impurities or undissolved solids. The pure HCl solution would then pass through the funnel into the container below, leaving impurities behind.
How do you separate chloroform from an aqueous solution by using separating funnel?
You would add the chloroform to the separating funnel and allow it to separate into distinct layers with the aqueous layer at the bottom. Gently shake the funnel to enhance separation and then carefully open the stopcock to drain off the lower aqueous layer containing water. The chloroform layer can then be collected separately.
Why do you need to remove the funnel before carrying out the titration?
chicken
To separate a mixtuer of copper sulfate and sand?
Add water to the mixture to dissolve the copper sulfate. Filter the mixture to separate the sand from the copper sulfate solution. Evaporate the water from the solution to recover the copper sulfate.
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 must the stem of the funnel touch the inside surface of the collecting beaker during filtration?
Ensuring the stem of the funnel touches the inside surface of the collecting beaker helps to prevent splashing or spillage of the liquid being filtered. It also helps to direct the filtered liquid smoothly into the beaker, minimizing the risk of contamination or loss of sample during the filtration process.
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.
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.
Show me a diagram of funnel experiment in the preparation of hcl?
I'm unable to display diagrams in this format. However, in the experiment to prepare hydrochloric acid (HCl) using a funnel, you would typically mix hydrochloric acid (HCl) and water in a beaker, place a funnel over another container, and pour the solution through the funnel to separate any impurities or undissolved solids. The pure HCl solution would then pass through the funnel into the container below, leaving impurities behind.
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
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.
How do you separate chloroform from an aqueous solution by using separating funnel?
You would add the chloroform to the separating funnel and allow it to separate into distinct layers with the aqueous layer at the bottom. Gently shake the funnel to enhance separation and then carefully open the stopcock to drain off the lower aqueous layer containing water. The chloroform layer can then be collected separately.
Why do you need to remove the funnel before carrying out the titration?
chicken
