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Unformatted text preview: 6. Does any Ba(IO 3 ) 2 (Ksp = 1.5x10-9 ) form when 6.5mg of BaCl 2 is dissolve din 500.mL of 0.033M NaIO 3 ? 7. If 0.010M Fe(NO 3 ) 3 is mixed with 0.01M NH 3 , will a precipitate (Fe(OH) 3 ) form? 8. Sodium chloride is added to a solution of 0.020M Pb(NO 3 ) 2 and 0.0010M AgNO 3 . In what order would the ions precipitate as sodium chloride is added? b) what [Cl-] is needed to precipitate each ion? 9. If you had a mixture of containing Fe 2+ and Zn 2+ , what could you add to selectively precipitate the ions? In what order would they ppt? 10. When 0.82g of ZnCl 2 is dissolved in 255mL of 0.150M NaCN, what are the [Zn 2+ ], [CN-], [Zn(CN) 4 2-] at equilibrium? K f of Zn(CN) 4 2-is 4.2x10 19 ....
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