The Inner Harbor is monitored for heavy metal contaminants. One of these I Pi?* because of its potential as a neurotoxin. A 927 g sample of water was taken from the inner Harbor and treated with acid to dissolve all species. The solution was then treated with H2504 (98.08 g/mol) and 0.561 g of PbSO4 (303.26 g/mol) was obtained. What is the concentration of Pb?* in ppm?
