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July 30, 2015

Homework Help: chemistry

Posted by Hannah on Monday, March 19, 2012 at 7:10pm.

In the 1970s, when lead was widely used in "ethyl" gasoline, the blood level of the average American contained 0.25 ppm lead. The danger level of lead poisoning is 0.80 ppm. (a) What percent of the average person was lead? (b) How much lead would be in an average 80 kg person? Give your answer in grams. (c) What percent of the average person would be lead if they had reached the danger level? (d) How much lead would the average person need to accumulate to reach the danger level? Give your answer in grams. (e) How much more lead would the average person need to accumulate to reach the danger level? Give your answer in grams.

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