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Problem: A GC is used to determine to concentration of a substance by the 'spiking' method. When an analyst injected 15 µL of an unknown solution into the GC, a single peak with a height of 9.3cm is observed. The analyst then prepared a solution by adding 20mg of pure standard to 100mL of the original unknown solution and injected 10 µL into the same GC under the same conditions and observed the same single peak, but with peak height of 96mm. What is the concentration of the substance in the unknown solution in ppm?
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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