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Why must a funnel be heated before hot acetanilide solution is heated and filtered?
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.
What else can I help you with?
Why do you need to remove the funnel before carrying out the titration?
Removing the funnel before titration ensures that all the liquid being added comes into direct contact with the solution being titrated. This helps to ensure accurate measurements and avoids any potential contamination from 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.
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.
To separate a mixtuer of copper sulfate and sand?
Get a funnel and a beaker and something to hold the funnel over the beaker. Put a paper which is fitted to the funnel so the sand cant get through, you pour the mixture of sand and copper sulfate into the funnel. So the sand stays on top of the paper and the liquids travel through the paper into the beaker.
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.
Which mixture is separated by a separating funnel?
only suspended particles are filtered
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.
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.
How can insoluble impurities be removed from a sodium hydroxide solution?
Insoluble impurities in a sodium hydroxide solution can be removed by filtration using filter paper or a filter funnel. The solution is poured through the filter, and the insoluble impurities are left behind while the filtered sodium hydroxide solution passes through. Additional washing or rinsing of the filtered solution may be needed to ensure complete removal of impurities.
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 do you need to remove the funnel before carrying out the titration?
Removing the funnel before titration ensures that all the liquid being added comes into direct contact with the solution being titrated. This helps to ensure accurate measurements and avoids any potential contamination from the funnel.
How could a solution of copper chloride and water be separated into starting substances?
The solution of copper chloride and water can be separated by a process called evaporation. By heating the solution, the water will evaporate, leaving behind crystallized copper chloride. These crystals can then be filtered out, resulting in the separation of the copper chloride and water.
Can a precipitate be filtered?
Yes, a precipitate can be filtered using filter paper or a filter funnel. The solid precipitate is trapped by the filter paper while the liquid passes through as filtrate.
Can suspension be filtered?
Yes, it can be filtered as the particles are large enough (greater than 100 nm)
Why moist the filtering paper before placing it in the funnel?
Wet filter paper adheres better to 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.
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.
