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Unformatted text preview: 2 , and Pb 2+ is present. Since the remaining precipitate dissolves on addition of 6 M NH 3 , there is no Hg produced, and the unknown did not contain Hg 2 2+ . The Ag + ion is present, since there had to be something in the precipitate that dissolved in NH 3 ....
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This lab report was uploaded on 04/08/2008 for the course CHEM 128 taught by Professor All during the Spring '08 term at UConn.
- Spring '08