# Acid-catalyzed hydration of alkenes

So I'm basically doing an experiment where I measure the effect of pH on the yield of alcohol within the acid catalyzed hydration of ethene. Essentially, all other details aside, I get a mixture of ethanol and ethyl chloride solutions at the end of my experiment. I want to find the total amount of either. I want to use a simple method to determine the amount of each in the solution. I want to avoid using fractional distillation, if possible. I need help to do this.

If you are only going to do this analysis once, or only rarely, then I would strongly suggest a commercial TX anaysis using Standard Methods - For the Examination of Water and Wastewater, Method 9020. Method 9020B is for the analysis of total organic halogens (TOX) in water, which is not appropriate for your analysis as a whole because it includes a step for extracting trace amounts of organics from water onto activated carbon. But, then a TX analysis is performed on the activated carbon, which is what you would want to do for your compound rather than for the activated carbon. This is typically about an $80 analysis. Regardless of the TX technique used, you would of course then assume that all of the halogen came from the ethyl chloride and calculate the ethyl chloride concentration from there. • Thank you for the answer. The carius method seems to require equipment that my school lab might not have. In particular, the carius tube and the furnace, though I am wondering if I can still do the same analysis without these apparatus. Suppose now that my solution also contained alcohol within it. In particular, I'm extremely sure that the alcohol present is only going to be ethyl alcohol. Is there any test that I can do to find the amount of ethanol in it? Thanks so much once again. – Abhijeet Vats Feb 25 '17 at 19:32 • Do you have access to either gas or liquid chromatography equipment? – airhuff Feb 25 '17 at 19:46 • There really isn't a simple, non-instrumental quantitative analysis for alcohols. Going back to the commercial route, if you can assume the only O in your product is from the alcohol, then you could get an O analysis done for about$35-\$45. But, if you were to go with that route, there is a combustion/ion selective electrode method for about the same price that would give more accurate results (for the ethyl chloride of course). I think the most likely method you'd be able to do yourself is the bomb combustion followed by gravimetric determination after precipitating Cl- with AgNO3. – airhuff Feb 25 '17 at 20:33