unknown 9 - Aeja Weiss Unknown 9: Scheme Possibilites!...

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Aeja Weiss Unknown 9: Scheme Possibilites! Cations: Ca +2 , K + , Na + , NH 4 + , Mg(H 2 O) 6 +2 , Al(H 2 O) 6 +3 Anions: Cl - , NO 3 - , SO 4 -2 , HSO 4 - , OH - , CO 3 -2 , HCO 3 - Insoluble Compounds: Ca(OH) 2 ,CaSO 4 *2H 2 O, CaCO 3 , MgCO 3 , Mg(OH) 2 , Alums: K[Al(H 2 O) 6 ](SO 4 ) 2 *6H 2 O, NH 4 [Al(H 2 O)](SO 4 )*H 2 O Not Possible Mg(OH 2 ) 4 (OH) 2 or Al(OH 2 ) 3 (OH) 3 or Al 2 O 3 1. Description of Sample What the phase, solubility, color, odor, shape? If soluble in water ½ - 2/3 should be dissolved in 10-15 mL of deionized water 5A 5B 2. Flame Test Orange (intense yellow) – Na + Present maybe Ca +2 , K + , NH 4 + , Mg(H 2 O) 6 +2 , Al(H 2 O) 6 +3 Red/Orange – Ca +2 present, but NO Na + , maybe others Purple- K + present, maybe NH 4 + and others, but NO Ca +2 , Na + Bluish/Green- Zn +2 Green- Cu +2 No color – Maybe Ag + , NH 4 + but NO Ca +2 , Na + , K + A. B.
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This note was uploaded on 07/14/2008 for the course CHM 2045L taught by Professor Horvath during the Spring '07 term at University of Florida.

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unknown 9 - Aeja Weiss Unknown 9: Scheme Possibilites!...

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