Will repeated filtering of 80 proof vodka alter the proof rating?
606104
you already asked\nthe answer is NO\nfiltering takes out larger pieces of stuff, which alcohol is not \nreally good vodka gets filtered like this numerous times to purify the taste but if garbage ingredients went in all the filtering in the world is not going to fix it (it also decreases your chance of a hangover)
888851
i dont think it changes much as you increase the amount of ethanol in water
165396
Probably because alcohol with evaporate
1164171
First off, thanks for staying drug-free and passing the test!\n\nNow, please ignore the foolish advice to drink 3 quarts of water -- it's possible to get water poisoning by drinking too much water and it can be FATAL!\n\nYour problem is not unusual at all, actually.  Many people have problems doing this in the presence of another person, especially a stranger.  However, for legal reasons (that actually protect YOU if you're drug-free!) a monitor is required to view the flow of urine from the urethra into the cup and to certify such under penalty of perjury.  In some non-justice related testing, such as pre-employment screening, alternative methods are used to verify that the sample is legitimate such as taking the temperature of the sample immediately after collection.  Unfortunately, this won't work in your case.\n\nYou might ask if a blood test could be used in lieu of the urine test.  Not all jurisdictions allow this and those that do may require you to pay the increased cost for blood testing but it's worth asking the question.\n\nFailing that, you're going to have to work through this on your own.  Try to psyche yourself up prior to the test.  Remind yourself that you ARE drug-free and this test is going to PROVE it to the world.  Picture yourself having successfully completed your probation or parole and NEVER having to do this again.  Anything that will ease the mental block for you.\n\nOnce you get a couple of clean tests, the folks there will come to accept the fact that you have problems doing this and may ease off the pressure a bit.  Actually, they deal with this on a daily basis but there's no way to separate the scammers from the folks with difficulty in providing a witnessed sample until they become accustomed to dealing with you.  In the best case scenario, they might use the same witness each time to help make it a bit easier on your though local policy may prohibit this.\n\nIt does help to have a bit extra to drink prior to reporting to the testing facility.  An extra cup of coffee or can of soda or two will usually suffice.  Don't overdo it though as excessive intake can be dangerous as I mentioned earlier.  It's also possible that the test could come back as "diluted" which would require you to retake the test.  This is a common ploy for drug users to try to cheat the test but it never works and if you're truly drug-free you don't want them to think that you're trying to get one over on them.
137698
definately vodka - this is a serious response. i ensure it will work
899588
Lots.  One of the more interesting ones was to make a mirror by reducing silver nitrate using a mild reducing agent (sugar).  The breathalyzers used by the Virginia State Highway Patrol use basically the same chemistry: alcohol in your breath reduces silver nitrate, and after the resulting silver is measured, an oxidizing agent puts the silver back into solution for re-use.
642645
Any. If you mix one, also a second placed incorrectly will be found.
710857
No.\n\nThe Ice block, when melted, will Increase the level in the vessel.\n\nIce blocks contain air trapped inside, so it is difficult to estimate exactly how much water will be added to the Vessel.\n\nThanks, Sandy
225634
None. They are two different compounds.\n\nIt looks like you want to compare a specific property of the alcohols. Please specify!
774935
http://wine1.sb.fsu.edu/krebs/krebs.htm
791236
1)Yes, if u change the property of that medium, by adding glycerine in water, or... etc. then the angle of refration would reverse out...  or depending what u want to attain...\n\n2)The velocity increases, due to the fact that the WAVELENGTH increases.\n\n3) There will be total reflection, no refraction above the glass will be seen\n\n4) to get better shine / reflection in stone -  \ntry to measure reflection off marine or other food (spoilage) -\nEPA can do the same with GAs refration,  eyc\n\n5)Fiber Optics communication,, Electro-Optic modulators,, Wave Scattering phenomenon/research   etc
149491
This is a "rule of thumb" that is the average of a lot of kinetic data.  To blindly apply it is unwise, but as a zero order estimate, it should work OK.  Detailed measurements must be done on your system of interest to find out true kinetic parameters and their sensitivity.
886749
0.3 NTU for surface water that has been filtered - more than that is no good . . .
471672
Depends on the method that you are using, and/or the age of the column. If the column is older than one year, or has more than 1000 hours of run time, it may be suspect. \n\nWith regards to the sample you are running, make sure that what you are running is compatible with an ODS column. Some chemistries will react with the silane groups and become permanently attached to the column. Also, make sure there are no matrix issues that could be obscuring your results. The sample might have to be washed or cleaned to remove/reduce matrix effects.\n\nWith the method you are running, make sure that you are properly cleaning the column after each run because some things may be retained on the column and not eluting.  You may have to run a stronger cleaning solvent to clean the column and then re-equilibrate with your running solvent.  Also, make sure that your running solvent stays constant and is not changing due to evaporation or any other factors. \n\nObviously to give reproducible results the methods that you use must remain as constant as possible. Check each of your method parameters to make sure nothing is changing. \n\nHope this helps without going into a treatise on HPLC theory and methodology.
97726
I know of no way to determine this without a counter. Go to link below for quality counter that is hidden from viewer's site. FREE and gives you great reporting.
468283
Depends on the quantity of ice in the water, time you measure it at, etc. All depends on the precise details of the experiment.
53470
Yeah, that's a good suggestion.  \nYou might also want to try stirring with a bulbous glass stirring rod or a rubber policeman very carefully.  Also, I think you'd be okay if you stir without making contact with the paper.  Perhaps the best suggestion, though, would be to pull through a little bit of your sample at a time; that way, your filter can handle pulling almost all of the liquid out of a small sample, then you add more in, etc., until it's all in and dry.