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What size boiling flask would one use to distill 75m of ethanol?
Wiki User
∙ 13y ago
As a rule of thumb, your vol. should not be above 2/3 of total capacity of the flask. Do a back calculation for 75 mL EtOH, use ~150 ml capacity and above but try not to use too large boiling flask. I will stay say between 150-250mL.
Wiki User
∙ 13y ago
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How would you know if the recovered ethanol is pure?
determine its boiling point. should be 78degrees C
What are the functions of Erlenmeyer flask?
Boiling liquids - to contain liquids, powders or granules - it is used in volumetry as a flask for the solution to be analyzed - it is used to collect the liquid from a filtration - to realize chemical experiments - etc.
What is flat bottom flask?
A flat bottom flask would be an Ehrlemeyer flask, which is used quite a lot by chemists.anf
What would be left in the flask when separating alcohol from water using fractional distillation?
In order to separate a mixture of alcohol (ethanol) and water, use a process known as fractional distillation. This technique relies on the principle that the compounds in the mixture have different boiling points. Since ethanol boils at a lower temperature (78.5 degrees C) than water, the alcohol vaporizes while the water remains a liquid. At some point, it will become an azeotropic mixture where the vapor has the same composition as the liquid. A good distillation column will produce an azeotropic mixture of 95 percent alcohol and 5 percent water. This ratio represents the most pure form of ethanol possible with distillation and is widely accepted as an industry standard.
Would ethanol be better than mercury for an outdoor thermometer in the arctic?
Ethanol would be better because it has a smaller range.
If you put ethanol and water together in a beaker which would evaporate first?
Ethanol would because it has a boiling point of 78.4 C where as water has one at 100 C.Through this process breweries and wineries can distill their liquors and find the percent off ethanol (alcohol) by volume.
In order to bring ethanol to a boiling point while keeping the temperature at 35 degrees what would the pressure need to be reduced to?
The exact pressure would vary dependant on if you are referring to the boiling point of an ethanol azeotrope or absolute ethanol. For example the boiling point at 1 ATM for azeotropic ethanol is 78.15C and for absolute ethanol it is 78.4C. At a temperature of 35.0C azeotropic ethanol will boil in a vacuume pressure of 159.8 mbar/hPa or 119.9 mmHg/Torr where as absolute ethanol boils at a slightly lower pressure of 158.6 mbar/hPa or 119 mmHg/Torr.
How would you know if the recovered ethanol is pure?
determine its boiling point. should be 78degrees C
What is the technique used to separate ethanol from a mixture of ethanol and propanol?
Distillation would work. Those two liquids have different boiling points, and heating it up to the boiling point of the lowest liquid would cause it to boil away, leaving behind the other.
What are the functions of Erlenmeyer flask?
Boiling liquids - to contain liquids, powders or granules - it is used in volumetry as a flask for the solution to be analyzed - it is used to collect the liquid from a filtration - to realize chemical experiments - etc.
What is a sentence using the word distill?
Men in Kentucky distill grains into moonshine.Distill and instill have separate meanings.To distill a chemical reaction takes time.
Why must the leaf be dipped in boiling water before immersing it in ethanol?
the green pigment, chlorophyll should be removed in order to observe color change during test for starch. in order to do that, the leaf is dipped in boiling water to break cell walls which would facilitate the release of the pigment out of the cell. immersion in ethanol would dissolve the pigment which would be released out of the cells thereby making the leaf appear pale in color.
If you cool a flask to -200degrise what would happen to the air?
I the flask was sealed, the air inside of the flask would take up less space and as a result, cause a drop in pressure inside the flask.
What is flat bottom flask?
A flat bottom flask would be an Ehrlemeyer flask, which is used quite a lot by chemists.anf
Why should a distilling flask be filled to not more than two-thirds of its capacity at the beginning of a distillation procedure?
If the flask is more than half full it is possible if it starts to boil and bump that some of the mixture could contaminate your distilled/re-condensed liquid by it bumping into the liquid that has been seperated.
Can you distill methylated spirits in a reflux still to produce pure ethanol?
I was thinking about this too...Methanol has a BP of ~ 64*C, ethanol has a BP of ~ 78*CWhen you run a batch through a refulx still you disgard the head (as metho burns off first)Methylated spirit is only a about 5% methanol, so theres not much to remove anwyay, run it through twice and discard 2 heads if need be.Taste it to tell when its methanol or ethanol (only a drop, its harmless), methanol has a real tang, wheras ethanol just tastes warm.Hope this helpsAnother user answer:Technically yes you can if you have fine enough temperature control, and to be sure multi-distillation passes would be advised.There are usually more additives than just methanol you want to remove, you want to boil off te methanol first, making sure the temp is accurate, just a few degrees under ethanol boiling point would do - I would do this for a long time.Then you also need to distill the ethanol off alone, at under 79 degrees, Isopropyl Alcohol is another additive and its boiling point is 82.4c, there is another additive which is 79.2 which is butanone, though its not a health risk, you still need to technically remove it for a pure ethanol product.There's others but theyre outside either range and not hazzardous like methanol, usually foul flavours and stuff that promotes vomitting, and they should be removed via careful temperature distillation on either side.Even so, you shouldn't try to distill methylated spirits for human consumption, there are a few news reports of people trying this and dying."We present the case report of a 47-year-old man fatally poisoned by ingestion of a home-distilled liquor produced from 'methylated spirits' containing 5% methanol and 90% ethanol. Classical signs of severe methanol poisoning, including altered conscious state, shock and profound acidosis were manifest at the time of presentation. Despite an ethanol infusion and haemodialysis he was declared brain dead 36 h after arrival at the emergency department."http://www3.interscience.wiley.com/journal/120102452/abstract?CRETRY=1&SRETRY=0
When would it be important to separate solutions andor mixtures?
The making of drinking alcohol (ethanol) is basically a bioreactor in which you grow yeast and feed them. The yeast produce ethanol as a waste product of their metabolism. However, once the concentration of ethanol in the solution reaches some percentage the yeast start to die from it. This is why beer is usually only a 5% or so solution. If you want to drink something like... absinthe or everclear or such, you have to distill your product solution. Therefore, it is important to separate solutions and mixtures if you like getting drunk.
