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Old Jan 3rd 2019, 07:37 AM   #1
nathanwxm
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A 3.00 g sample of an alloy (containing only Pb and Sn) was dissolved in nitric acid (HNO3). Sulfuric acid was added to this solution, which precipitated 1.69 g of PbSO4 (RMM = 303.26 g/mol). Assuming that all of the lead (Atomic mass = 207.2 g/mol) was precipitated, what is the weight percentage of Sn in the sample?
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