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The concentration of toxic chemicals in the environment is frequently measured in parts per million (ppm) or sometimes parts per billion (ppb). A solution in which the concentrate of the solute is 3 ppb by mass has 2 g of the solute for every billion grams (1000t) of the solution. The WHO set the acceptable standard for lead in drinking water at 10 ppb. In 1992 1/3 of the homes in Chicago was found to have a lead concentration of 10 ppb. If you lived in one of these homes and dranl 2 L of tap water a day, Explain what is the total mass of lead you have ingested per year?
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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