(conway experiemnt ) Quantitative ethyl ethanol answer the following question ex
ID: 900870 • Letter: #
Question
(conway experiemnt ) Quantitative ethyl ethanol answer the following question exaplin in your own words:
1) How does the alcohol get from the outer chamber to the inner?How can this process be hastened? (2 ways)?
2) What is the purpose fo the different chemical additions to theouter chamber?
3) What reactions take place in the inner chamber?
4) What is the advantage(s) and disadvantage(s) of photometry tomeasure the ethanol?
5) What about the titration method?
6) What is meant by deviations from Beer's Law?
7) What do you do if you have deviations from Beer's Law at highconcentrations? Low concentrations?
8) How will your calibration curve compare to that in Kaye'sarticle? Is there a difference? Is there an advantage to plottingone of the ways? What is it?
9) What is the probable reason Kaye plotted %Transmittance for hiscurve?
10) What if you were doing gastric contents and performed theanalysis, obtained results and then found by Quantitative GC thateither methanol or isopropanol were present but not ethanol? Allthe sample is gone. What could you do?
11) Same scenario as above BUT you find by GC that there is amixture of 2 or 3 of the alcohols above? The sample is notcompletely gone. What do you do?
12) Which would be more accurate titration of photometry?
13) Is the separation and analysis specific for Ethanol? See #10and #11 above.
14) Can you make this micro-diffusion analysis more specificwithout going to another technique? Think about chemistry or toxicology
Explanation / Answer
6.) The law governs the absorption behaviour of dilute solutions only. At high solute concentrations, the ions of a solute, it it is an electrolyte, are close to disturb the charge distribution of their neighbours. The interionic interaction can drastically alter the ability of the solute to absorb a given wave length of the incident radiation.
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