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1) A solute, S, is in an aqueous solution. You want to measure its concentration but water will damage the gas chromatographic system. The solute is 5.0 times more soluble in methanol. You have 500 ml of methanol available and lunch is in 35 minutes. Each extraction takes 10 minutes. A. How can you maximizes the amount of solute extracted and still have time to wash up before your buddies come looking for you? what is the % solute remaining in aqueous solution? B. How much solute would be left (in percent) if you used all of the methanol at once? (assume 100.0 ml for the initial volume containing the solute)
2) What are the advantages and disadvantages of using a longer chromatographic column?
Show all the steps in the mechanism for the following reaction, When benzene is mixed with deuterated sulfuric acid, deuterium is slowly incorporated onto the ring. Show the mechanism for this reaction and explain how this relates the sulfonation of ..
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