Chemistry, 19.10.2021 14:00 gwoodbyrne
Chloroform is an internal standard in the determination of the pesticide DDT in a polarographic analysis in which each compound is reduced at an electrode surface. A mixture containing chloroform and DDT gave signals of for chloroform and for DDT. An unknown solution containing DDT was placed in a volumetric flask and of chloroform were added. After dilution to the mark with solvent, polarographic signals of and were observed for the chloroform and DDT, respectively. Find the concentration of DDT in the unknown.
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