How can we test for an alkane, alkene and alkyne?
141036
for alkenes and alkynes....react the mixture with CU2CL2 AND NH4CL, IF THE PRODUCT GIVE RED COLOUR THEN IT MEANS ALKENES ARE PRESENT AND IF PRODUCT DONT GIVE RED COLOUR THEN THE COMPOUND CONTAIN ALKYNES.\nALKANES- REACT WITH 03, IF THE COMPOUND DONT REACT THEN IT MEANS ALKANES ARE PRESENT(BECAUSE OZONOLYSIS (O3) IS USED TO DETERMINE THE PRESENCE OF DOUBLE BOND)
577014
http://en.wikipedia.org/wiki/Alkenes\nhttp://en.wikipedia.org/wiki/Alkynes\nhttp://en.wikipedia.org/wiki/Benzene
834640
Diagnostic tests: \nIn solution, a cesium will give a flame test color of a beautiful sky-blue. This flame test will be contaminated with the colors of the other alkaline elements which are present in the sample. You will probably need a diffraction spectroscope to view the two blue emission lines from cesium =http://webmineral.com/chem/Chem-Cs.shtml\nhttp://www.chemtopics.com/elements/alkali/alkalif.htm#cesium - to see the exact color go to this site!\n\nSo basically, it's either pale violet or a beautiful sky-blue. Which one for sure, I don't know! - Hope this helps you!
1068778
pure butane is neutral for sure. And butane, no matter isobutane(2-methylpropane) or just butane, is an alkane. \n\npH = -log[concentration of hydronium ions] (hydronium is H3O+), but Alkane does not dissolve in water since no ionic bond exists in the compound, so measuring its pH does not make much sense.\n\nCarbon and hydrogen have very similar electronegativity, so it's very difficult to remove hydrogen from the saturate carbon chain. alkane has pka value around 50, pKa value for water is around 16.
488364
Chemexper.com its super cool , type in the name of the compound and it will give you a ton of info about the thing you are looking at. I order chemicals off of it but it was really useful in researching for my Ochem labs as well.
317042
www.chemfinder.com might help
542412
See number 28:\nhttp://elchem.kaist.ac.kr/jhkwak/OkanaganPdb97/molecule/alkane.htm
269519
The test that I'm familiar with is thin layer chromatography.  This process uses the polarizability chararacteristics of each pigment in a plant sample.  In my experiment, spinach leaves are grounded and mixed with anhydrous sodium sulfate and sand.
1127301
I leave the H's:\nC-C-C-C-O butanol-2\nC-C-CO-C  butanol-2\nC-O-C-C-C propyloxy methane\nnot shown: isopropyloxy methane\nC-C-O-C-C ethoxy ethane
460409
Just guess what the colors would be for different compounds before you actually do the flame test for the hypothesis.  \nOr you could guess whether it is the cation (the positively charged metal ion) or the nonmetal anion that is responsible for the different colors.
980666
propane\nbutane\nhydrogen\nmethane\nacetylene\nmethyl chloride\nnickel carbonyl\nhydrogen sulfide\n\n\nhundred of others
469125
A link to a protocol from Alpco Diagnostics:\n\nhttp://www.alpco.com/pdfs/30/30-2201.pdf
140226
ethanol and oil\nwater and chloroform
91801
What are they testing for?
1136335
http://www.ioga.com/Special/crudeoil_Hist.htm\nThat should help.
125296
use spectrophotometric method(uv-vis spectrometry).Few things u shud remember.....\n1) Use Labert-Beer's law\n2) u shud know the molar extingtion coefficient value of that particular species\n3) concentration of the species\n4) Calculate lambdamax. using LB law\nIt is an indirect method.\n\nUV-VIS. Spectroscopy will give u the lambdamax value directly...alongwith absorbance
804976
Last year my nerdy friends and I made Christmas ornaments out of test tubes.  We got ahold of some stuff called Tollen's reagent that's used to perform the "silver mirror test".  That's used to distinguish between aldehydes and ketones because mixing Tollen's reagent with an aldehydes causes it to coat the vessel like a silver mirror, but nothing happens with ketones.  We mixed the Tollen's with an aldehyde and shook the test tubes until the mirrors formed, then decorated them.