how do you separate heptane and heptanol?
105650
they already do themsevles. One of them is a gas, the other is a liquid.
532583
benzioc acid in its neutral form is non-polar. So you cannot separate it from ether (also non-polar). you want to make benzoic acid polar by deprotonating it so you can separate it from ether.\n\nsodium bicarbonate is a weak base, so it would deprotonate the acidic hydrogen on benzoic acid and makes it polar. However, since sodium bicarbonate is a weak base, it does not deprotonate the benzoic acid very efficiently. To do that, you can you sodium hydroxide, which is a much stronger base and can deprotonoate benzoic acid almost completely. so sodium hydroxide is a better choice.
677148
I used to buy a product from Exxon called Varsol.  You can use gasoline also.
1168602
Please, the question is not completed because if you are try to use separating techniques , you must have a mixture that you want to separate so toothpick is just a substance and not a mixture you can add any other substance before it become a mixture.\nthanks for my mark.
722185
From this patent\n\nwww.freepatentsonline.com/6962719.html\n\n\n\nThe total extract described in EXAMPLE 1 was loaded in a dialysis bag with molecular weight cut off 500 (Spectra/Por®, Cat. No. 131 057). Both ends of the bag were sealed with clamps. The bag was placed in a bucket contained deionized water, in which the ratio of the supernatant and deionized water was 1:10. The total extract was dialyzed at 4° C. with stirring thrice each for 20 hours. The solution remaining in dialysis bag was collected and concentrated under reduced pressure to give the extract.
1168680
To purify (separate) the product you want from impurities. For example, if you wanted to separate a mix of alcohol and water, you would use the distillation flask along with a heating mantle (like a Bunsen burner, but designed for flasks) to heat the mixture; because alcohol has a lower boiling point than water, it would evaporate faster and re-condense in the collection flask, leaving water in the distillation flask.
941085
Pore some vegetable oil into a glass of water.  Shake it up then let it sit for a minute.  The oil will separate out of the water and you will see two layers.  The oil is a lipid because it isn't polar and can't dissolve in the water.
42193
http://www.itt.edu/staff/boyter/links/index.html\n\nLook under chemistry equipment.  There are some chemicals you will not be able to get.  Posting what you are looking for would help.
292371
There is only one I can think of. 1-hexyne can be deprotonated with sodium in liquid ammonia, to yield a very basic, nucleophilic anion.\n\n2-hexyne has no such proton to remove.\n\n===\nThe poster below is also correct. NMR would be the fastest way. You wouldn't even have to use a deuterated solvent. (because the hexyne would be a liquid).
968063
Substances in a mixture just need to be separated, which might happen naturally over time, or could be done by filtration, distillation or a centrifuge (which spins fast to take heavier items out of the mixture).  \n\nElements in a compound are chemically bonded, so you have to reverse the bonding process, which is different depending on the elements in the compound.  If it is a salt, it is as simple as adding water and using electricity to pull the ions you want out.  Once you do, those ions are not all going to be elements--further manipulation will be needed.  Other chemicals are much more complicated though.
44793
Zinc chloride is soluble in water, but silicon dioxide is not. Therefore, their separation can be accomplished by using water.\n\nHope this helps,\nUltimeaciax
140226
ethanol and oil\nwater and chloroform
851681
Write the balanced equation - you need the mole ratios.\n\nChange 1g hexane to moles of hexane.\n\nSee how many moles of oxygen are USED and how many moles of  CO2 and H2O are formed.\n\nYour total number of moles in the reaction mixture would then be:\n\nmoles of Oxygen NOT used + moles of CO2 (we will assume the water formed consenses to a liquid at 20 degrees).\n\nUse the Ideal Gas Law to figure out the volume.\n\nPV = nRT\n\nwhere P = given pressure - water vapor pressure\nwhere V = your unknown\nwhere n = your total moles of gas\nwhere R = the appropriate Universal Gas Law constant\nwhere T = the temperature in KELVIN
104161
You could rig a "Dean-Stark Trap" on the side of your condensor. That will eliminate water from your esterification (assuming its similar to the Fisher esterification) and force the production of more water and product, until one of the reagents is used up or an equilibrium is achieved.\n\nAnother method would be TLC, comparing the starting reaction mixture to the final product.\n\nSpectroscopy (NMR, IR) could be used.\n\nFinally, you could just put some of your sample into a GC-MS.
824314
Two types of preps.\n\nA. To make the solution you use in titrations.\n\nPreparation of Phenolphthalein Indicator (Acid/Base Indicator) \n\n1. - Weigh out 0.5 g of phenolphthalein.\n\n2. - Prepare a 50% ethanol (ethyl alcohol) solution consisting of 50ml ethanol and 50 ml water. \n\n3. - Dissolve the phenolphthalein thoroughly in the 50% ethanol solution. \n\n4. - Use from a bottle fitted with an eye dropper. Store the rest in a stoppered bottle. \n\n\nB. To synthesize the chemical you have to go back to references in the 1880s or the patent literature of the 1950s.  You will need to find a university library for that.  The basics are the condensation reaction of phenol and phthalic anhydride.  A more modern method is given in the reference.
366491
different ways to do it.  steam distillation, expression, solvent extraction and efleurage. the first is the easiest and what you want to know if you are looking for a how to. Use hot steam, like a steamer, you'll end up with the oil and water.  then separate the oil.  \n\nthe other methods are more complicated, but you do end up with more oil.  but at what price?  second method the is to use pressure or centrifugation. At home, not likely you have anything to make this work.   The third method you use a solvent, but then the oil and solvent are mixed.  You then evaporate the solvent (you can get at a whole foods store to do this) when the solvent is evaporated you are left with a heavy, waxy substance called concrete. Then you have to separate the liquid from the was.  it's great because it is most concentrated from of aroma, but very time consuming and complicated.  That last, efleurage is a really long process using animal fats and alcohol. Although essential oils main usage is in cosmetics and perfumery, many of them do have proved therapeutic properties.
1136961
Are you preparing a buffer soln with NaHCO3 and NaCl ? Then take equimolar amounts of both and dissolve them in 100 ml of water and then dilute them to the desired strength.