scheme of analysis 5

scheme of analysis 5 - Scheme of Analysis - Assignment 5...

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Scheme of Analysis - Assignment 5 Possible Chemicals in Sample A: Cations: Na + , K + , NH 4 + , Ca 2+ , Mg(OH 2 ) 6 2+ , Al(OH 2 ) 6 3+ Anions: Cl - , NO 3 - , SO 4 2- , HSO 4 - , OH - , CO 3 2- , HCO 3 - Insoluble Compounds: Ca(OH 2 ) 2 , CaSO 4 ●2H 2 O, CaCO 3 , MgCO 3 , Mg(OH) 2 Alums: Na[Al(OH 2 ) 6 ](SO 4 ) 2 ●6H 2 O, K[Al(OH 2 ) 6 ](SO 4 ) 2 ●6H 2 O, NH 4 [Al(OH 2 ) 6 ] (SO 4 ) 2 ●H 2 O -Pure salt (one anion and one cation) or alum, guaranteed. -If Soluble: alums, salts, NOT carbonates or hydroxides. Eliminate insoluble solids. Possible Chemicals in Sample B: Cations: Na + ,K + , NH 4 + , Ca 2+ , Mg(OH 2 ) 6 2+ , Al(OH 2 ) 6 3+ Anions: Cl - , NO 3 - , SO 4 2- , HSO 4 - , OH - , CO 3 2- , HCO 3 - Insoluble Compounds: Ca(OH 2 ) 2 , CaSO 4 ●2H 2 O, CaCO 3 , MgCO 3 , Mg(OH) 2 Alums: Na[Al(OH 2 ) 6 ](SO 4 ) 2 ●6H 2 O, K[Al(OH 2 ) 6 ](SO 4 ) 2 ●6H 2 O, NH 4 [Al(OH 2 ) 6 ] (SO 4 ) 2 ●H 2 O - Mix with deionized water, centrifuge, and separate. 1. Sample Description: Color Crystal Shape Odor Phase -Homogenize unknown if mixture 2. Prepare Solution: Dissolve about half the sample in 10mL of deionized water. 3.
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This note was uploaded on 04/29/2008 for the course CHM 2046L taught by Professor Horvath during the Fall '08 term at University of Florida.

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scheme of analysis 5 - Scheme of Analysis - Assignment 5...

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