ASA-Group1

ASA-Group1 - 2 , and Pb 2+ is present. Since the remaining...

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ASA for Expt. 19 1. 2. A. Hg 2 2+ (aq) + 2 Cl (aq) Hg 2 Cl 2 (s) B. Pb 2+ (aq) + CrO 4 2– (aq) PbCrO 4 (s) C. Hg 2 Cl 2 (s) + 2 NH 3 (aq) Hg (l) + HgNH 2 Cl (s) + NH 4 + (aq) + Cl (aq) D. Ag(NH 3 ) 2 + + 2 H + (aq) + Cl (aq) AgCl (s) + 2 NH 4 + (aq) 3. — Since the precipitate is partially soluble in hot water, it contains PbCl
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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.

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