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Copper in salt water near the dischargeof a sewage treatment plant is determined by first seperating andconcentrating it by solvent extraction of its dithizone chelate atpH 3 into a methylene chloride and then evaporating the solvent,ashing the chelate to distroy the organic portion, and titratingthe copper with EDTA. Three 1-L portions of the sample are eachextracted with 25 mL portions of methylene chloride and theextracts are combined in a 100-mL volumetric flask and diluted to volume. A 50-mL aliqout is combined in a 100mL volumetric flask anddiluted to volume. A 50 mL aliqout is evaporated, ashed, andtitrated. If the EDTA solution has a CaCO3 titer 2.69 mg/mL and2.67mL is required for titration of the copper, what is the concentration of the copper in the seawater?
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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